Uitgebreide Getallenanalyse
21
Het is een Fibonacci-getal! (Positie: 8)
Het is een driehoekig getal!
Getalvisualisaties
Binair Visueel
10101
3 enen, 2 nullen
Wiskundige Eigenschappen
Basis Eigenschappen
Pariteit:
Oneven
Priem:
Nee
Vierkant:
441
cube:
9,261
square_root:
4.5826
cube_root:
2.7589
divisors_factors
prime_factors:
3 × 7
number_divisors:
4
sum_divisors:
11
type:
deficient
Delers:
1, 3, 7, 21
conversions
binary:
10101
octal:
25
hexadecimal:
15
roman:
XXI
Base64:
MjE=
geometry_measures
circle_radius
area:
1,385.44 u²
perimeter:
131.95 u
diameter:
42 u
square_side
area:
441 u²
perimeter:
84 u
diagonal:
29.70 u
volumes_3d
Cubo:
9,261 u³
sphere:
38,792.39 u³
cylinder:
29,094.29 u³
more_measures
equilateral_triangle:
190.96 u²
hexagon:
1,145.75 u²
cube_surface:
2,646 u²
numerology_symbolism
numerological_analysis
digit_sum:
3
numerological_reduction:
3
digit_product:
2
Unieke Cijfers:
2
meanings:
Creatividad
Expresión
Comunicación
number_curiosities
general_fact: 21 is the number of points required to win a game in badminton and table tennis (before 2001).
math_fact: 21 is the smallest natural number that is not close to a power of 2, 2^n, where the range of closeness is +- n.
trivia: 21 is the number of demands which were sent to the Chinese government by the Japanese government of Okuma Shigenobu in 1915.
historical_date: January 21st is the day in 1864 that the Tauranga Campaign begins during the Maori Wars.
interesting_properties
in_calendar
day_of_year:
21 January
weeks:
3 weeks
months:
0.7 months
years:
0.06 years
in_time
seconds:
00:00:21
minutes:
0.35 min
hours:
0.01 h
days:
0 days
representations
percentage:
21%
angle:
21°
temperature:
21°C = 69.8°F
frequency:
21 Hz
games
dice:
3 dados + 3
chess:
e3
cards:
8♥
Programmagenerated voor nummer 21
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