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21,134

21,134 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 Happy Number Odious Number Pernicious Number Recamán's Sequence Semiprime Squarefree

Properties

Parity
Even
Digit count
5
Digit sum
11
Digit product
24
Digital root
2
Palindrome
No
Bit width
15 bits
Reversed
43,112
Recamán's sequence
a(41,571) = 21,134
Square (n²)
446,645,956
Cube (n³)
9,439,415,634,104
Divisor count
4
σ(n) — sum of divisors
31,704
φ(n) — Euler's totient
10,566
Sum of prime factors
10,569

Primality

Prime factorization: 2 × 10567

Nearest primes: 21,121 (−13) · 21,139 (+5)

Divisors & multiples

All divisors (4)
1 · 2 · 10567 (half) · 21134
Aliquot sum (sum of proper divisors): 10,570
Factor pairs (a × b = 21,134)
1 × 21134
2 × 10567
First multiples
21,134 · 42,268 (double) · 63,402 · 84,536 · 105,670 · 126,804 · 147,938 · 169,072 · 190,206 · 211,340

Sums & aliquot sequence

As consecutive integers: 5,282 + 5,283 + 5,284 + 5,285
Aliquot sequence: 21,134 10,570 11,318 5,662 3,338 1,672 1,928 1,702 1,034 694 350 394 200 265 59 1 0 — terminates at zero

Representations

In words
twenty-one thousand one hundred thirty-four
Ordinal
21134th
Binary
101001010001110
Octal
51216
Hexadecimal
0x528E
Base64
Uo4=
One's complement
44,401 (16-bit)
In other bases
ternary (3) 1001222202
quaternary (4) 11022032
quinary (5) 1134014
senary (6) 241502
septenary (7) 115421
nonary (9) 31882
undecimal (11) 14973
duodecimal (12) 10292
tridecimal (13) 9809
tetradecimal (14) 79b8
pentadecimal (15) 63de

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹 𒌋𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓂍𓆼𓍢𓎆𓎆𓎆𓏺𓏺𓏺𓏺
Greek (Milesian)
͵καρλδʹ
Mayan (base 20)
𝋢·𝋬·𝋰·𝋮
Chinese
二萬一千一百三十四
Chinese (financial)
貳萬壹仟壹佰參拾肆
In other modern scripts
Eastern Arabic ٢١١٣٤ Devanagari २११३४ Bengali ২১১৩৪ Tamil ௨௧௧௩௪ Thai ๒๑๑๓๔ Tibetan ༢༡༡༣༤ Khmer ២១១៣៤ Lao ໒໑໑໓໔ Burmese ၂၁၁၃၄

Digit at this position in famous constants

π — Pi (π)
Digit 21,134 = 1
e — Euler's number (e)
Digit 21,134 = 7
φ — Golden ratio (φ)
Digit 21,134 = 5
√2 — Pythagoras's (√2)
Digit 21,134 = 9
ln 2 — Natural log of 2
Digit 21,134 = 2
γ — Euler-Mascheroni (γ)
Digit 21,134 = 9

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 21134, here are decompositions:

  • 13 + 21121 = 21134
  • 67 + 21067 = 21134
  • 73 + 21061 = 21134
  • 103 + 21031 = 21134
  • 151 + 20983 = 21134
  • 277 + 20857 = 21134
  • 523 + 20611 = 21134
  • 541 + 20593 = 21134

Showing the first eight; more decompositions exist.

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

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

Hex color
#00528E
RGB(0, 82, 142)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.82.142.

Address
0.0.82.142
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.82.142

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

Position in π

The digit sequence 21134 first appears in π at position 757 of the decimal expansion (the 757ordinal-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.