number.wiki
Live analysis

21,133

21,133 is a composite number, odd.

This number doesn't have a permanent NumberWiki page yet — what you see below is computed live. Pages get added to the permanent index when they're notable (years, primes, curated, etc.).
Arithmetic Number Deficient Number Odious Number Pernicious Number Recamán's Sequence Semiprime Squarefree

Properties

Parity
Odd
Digit count
5
Digit sum
10
Digit product
18
Digital root
1
Palindrome
No
Bit width
15 bits
Reversed
33,112
Recamán's sequence
a(41,573) = 21,133
Square (n²)
446,603,689
Cube (n³)
9,438,075,759,637
Divisor count
4
σ(n) — sum of divisors
24,160
φ(n) — Euler's totient
18,108
Sum of prime factors
3,026

Primality

Prime factorization: 7 × 3019

Nearest primes: 21,121 (−12) · 21,139 (+6)

Divisors & multiples

All divisors (4)
1 · 7 · 3019 · 21133
Aliquot sum (sum of proper divisors): 3,027
Factor pairs (a × b = 21,133)
1 × 21133
7 × 3019
First multiples
21,133 · 42,266 (double) · 63,399 · 84,532 · 105,665 · 126,798 · 147,931 · 169,064 · 190,197 · 211,330

Sums & aliquot sequence

As consecutive integers: 10,566 + 10,567 3,016 + 3,017 + … + 3,022 1,503 + 1,504 + … + 1,516
Aliquot sequence: 21,133 3,027 1,013 1 0 — terminates at zero

Representations

In words
twenty-one thousand one hundred thirty-three
Ordinal
21133rd
Binary
101001010001101
Octal
51215
Hexadecimal
0x528D
Base64
Uo0=
One's complement
44,402 (16-bit)
In other bases
ternary (3) 1001222201
quaternary (4) 11022031
quinary (5) 1134013
senary (6) 241501
septenary (7) 115420
nonary (9) 31881
undecimal (11) 14972
duodecimal (12) 10291
tridecimal (13) 9808
tetradecimal (14) 79b7
pentadecimal (15) 63dd

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹 𒌋𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓂍𓆼𓍢𓎆𓎆𓎆𓏺𓏺𓏺
Greek (Milesian)
͵καρλγʹ
Mayan (base 20)
𝋢·𝋬·𝋰·𝋭
Chinese
二萬一千一百三十三
Chinese (financial)
貳萬壹仟壹佰參拾參
In other modern scripts
Eastern Arabic ٢١١٣٣ Devanagari २११३३ Bengali ২১১৩৩ Tamil ௨௧௧௩௩ Thai ๒๑๑๓๓ Tibetan ༢༡༡༣༣ Khmer ២១១៣៣ Lao ໒໑໑໓໓ Burmese ၂၁၁၃၃

Digit at this position in famous constants

π — Pi (π)
Digit 21,133 = 9
e — Euler's number (e)
Digit 21,133 = 0
φ — Golden ratio (φ)
Digit 21,133 = 3
√2 — Pythagoras's (√2)
Digit 21,133 = 7
ln 2 — Natural log of 2
Digit 21,133 = 6
γ — Euler-Mascheroni (γ)
Digit 21,133 = 4

Also seen as

Unicode codepoint
CJK Unified Ideograph-528D
U+528D
Other letter (Lo)

UTF-8 encoding: E5 8A 8D (3 bytes).

Hex color
#00528D
RGB(0, 82, 141)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.82.141.

Address
0.0.82.141
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.82.141

Unspecified address (0.0.0.0/8) — "this network" placeholder.

Position in π

The digit sequence 21133 first appears in π at position 164,467 of the decimal expansion (the 164,467ordinal-suffix:th digit after the integer 3).

Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.