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21,322

21,322 is a composite number, even.

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 Sphenic Number Squarefree

Properties

Parity
Even
Digit count
5
Digit sum
10
Digit product
24
Digital root
1
Palindrome
No
Bit width
15 bits
Reversed
22,312
Recamán's sequence
a(41,195) = 21,322
Square (n²)
454,627,684
Cube (n³)
9,693,571,478,248
Divisor count
8
σ(n) — sum of divisors
36,576
φ(n) — Euler's totient
9,132
Sum of prime factors
1,532

Primality

Prime factorization: 2 × 7 × 1523

Nearest primes: 21,319 (−3) · 21,323 (+1)

Divisors & multiples

All divisors (8)
1 · 2 · 7 · 14 · 1523 · 3046 · 10661 (half) · 21322
Aliquot sum (sum of proper divisors): 15,254
Factor pairs (a × b = 21,322)
1 × 21322
2 × 10661
7 × 3046
14 × 1523
First multiples
21,322 · 42,644 (double) · 63,966 · 85,288 · 106,610 · 127,932 · 149,254 · 170,576 · 191,898 · 213,220

Sums & aliquot sequence

As consecutive integers: 5,329 + 5,330 + 5,331 + 5,332 3,043 + 3,044 + … + 3,049 748 + 749 + … + 775
Aliquot sequence: 21,322 15,254 8,506 4,256 5,824 8,400 22,352 25,264 23,716 29,351 4,849 387 185 43 1 0 — terminates at zero

Representations

In words
twenty-one thousand three hundred twenty-two
Ordinal
21322nd
Binary
101001101001010
Octal
51512
Hexadecimal
0x534A
Base64
U0o=
One's complement
44,213 (16-bit)
In other bases
ternary (3) 1002020201
quaternary (4) 11031022
quinary (5) 1140242
senary (6) 242414
septenary (7) 116110
nonary (9) 32221
undecimal (11) 15024
duodecimal (12) 1040a
tridecimal (13) 9922
tetradecimal (14) 7ab0
pentadecimal (15) 64b7

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓂍𓂍𓆼𓍢𓍢𓍢𓎆𓎆𓏺𓏺
Greek (Milesian)
͵κατκβʹ
Mayan (base 20)
𝋢·𝋭·𝋦·𝋢
Chinese
二萬一千三百二十二
Chinese (financial)
貳萬壹仟參佰貳拾貳
In other modern scripts
Eastern Arabic ٢١٣٢٢ Devanagari २१३२२ Bengali ২১৩২২ Tamil ௨௧௩௨௨ Thai ๒๑๓๒๒ Tibetan ༢༡༣༢༢ Khmer ២១៣២២ Lao ໒໑໓໒໒ Burmese ၂၁၃၂၂

Digit at this position in famous constants

π — Pi (π)
Digit 21,322 = 0
e — Euler's number (e)
Digit 21,322 = 1
φ — Golden ratio (φ)
Digit 21,322 = 1
√2 — Pythagoras's (√2)
Digit 21,322 = 6
ln 2 — Natural log of 2
Digit 21,322 = 5
γ — Euler-Mascheroni (γ)
Digit 21,322 = 0

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 21322, here are decompositions:

  • 3 + 21319 = 21322
  • 5 + 21317 = 21322
  • 53 + 21269 = 21322
  • 101 + 21221 = 21322
  • 131 + 21191 = 21322
  • 173 + 21149 = 21322
  • 179 + 21143 = 21322
  • 233 + 21089 = 21322

Showing the first eight; more decompositions exist.

Unicode codepoint
CJK Unified Ideograph-534A
U+534A
Other letter (Lo)

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

Hex color
#00534A
RGB(0, 83, 74)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.83.74.

Address
0.0.83.74
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.83.74

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

Possible US bank routing number

This passes the ABA routing number checksum and matches the Federal Reserve numbering scheme.

Routing number
000021322
Federal Reserve
United States Government

Banks operate many routing numbers per state and division; an unmatched checksum-valid number can still be a real RTN at a smaller institution.

Position in π

The digit sequence 21322 first appears in π at position 145,302 of the decimal expansion (the 145,302ordinal-suffix:nd 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.