Number 21000

Interestingness: 8

Visual representations

Binary image (n×n bits)
Octogonal · P8(84) = 21000
2³35³7
Prime factorization

Representations of 21000

Greek numeral
β
Μ
͵α
Sanskrit numeral
२१०००
Arabic numeral
٢١٠٠٠
Roman numeral
XXM
Maya numeral
●●
●●
▃▃▃▃▃
▃▃▃▃▃
▃▃▃▃▃
▃▃▃▃▃
ↂ
Chinese numeral
二万一千
Hebrew numeral
כא׳
Egyptian numeral
𓂭𓂭
𓆼
Morse code
..---.-------------------

21000 in different numeral systems

Binary
101001000001000
Base-3
1001210210
Base-4
11020020
Base-5
1133000
Base-6
241120
Base-7
115140
Base-8
51010
Duodecimal
101a0
Hex
5208
Vigesimal
2ca0
Base-24
1cb0
Base-36
g7c
Negabinary
101011000011000

Factorization

Prime factors: 2, 3, 5, 7
Divisors: 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 42, 50, 56, 60, 70, 75, 84, 100, 105, 120, 125, 140, 150, 168, 175, 200, 210, 250, 280, 300, 350, 375, 420, 500, 525, 600, 700, 750, 840, 875, 1000, 1050, 1400, 1500, 1750, 2100, 2625, 3000, 3500, 4200, 5250, 7000, 10500, 21000
Sum of divisors other than 21000: 53880
Product of prime factors: 21000 = 2 × 2 × 2 × 3 × 5 × 5 × 5 × 7

Number-theory characteristics (6)

Octogonal Difference of 2 squares Evil number Even Composite Abundant

Base-10 digit properties (2)

These depend on the decimal representation of the number.

Harshad Duck number

Related primes

Prime number before 21000
Prime number after 21000