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22,000

22,000 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.).
Abundant Number Evil Number Gapful Number Harshad / Niven Practical Number Recamán's Sequence Semiperfect Number

Properties

Parity
Even
Digit count
5
Digit sum
4
Digit product
0
Digital root
4
Palindrome
No
Bit width
15 bits
Reversed
22
Recamán's sequence
a(167,763) = 22,000
Square (n²)
484,000,000
Cube (n³)
10,648,000,000,000
Divisor count
40
σ(n) — sum of divisors
58,032
φ(n) — Euler's totient
8,000
Sum of prime factors
34

Primality

Prime factorization: 2 4 × 5 3 × 11

Nearest primes: 21,997 (−3) · 22,003 (+3)

Divisors & multiples

All divisors (40)
1 · 2 · 4 · 5 · 8 · 10 · 11 · 16 · 20 · 22 · 25 · 40 · 44 · 50 · 55 · 80 · 88 · 100 · 110 · 125 · 176 · 200 · 220 · 250 · 275 · 400 · 440 · 500 · 550 · 880 · 1000 · 1100 · 1375 · 2000 · 2200 · 2750 · 4400 · 5500 · 11000 (half) · 22000
Aliquot sum (sum of proper divisors): 36,032
Factor pairs (a × b = 22,000)
1 × 22000
2 × 11000
4 × 5500
5 × 4400
8 × 2750
10 × 2200
11 × 2000
16 × 1375
20 × 1100
22 × 1000
25 × 880
40 × 550
44 × 500
50 × 440
55 × 400
80 × 275
88 × 250
100 × 220
110 × 200
125 × 176
First multiples
22,000 · 44,000 (double) · 66,000 · 88,000 · 110,000 · 132,000 · 154,000 · 176,000 · 198,000 · 220,000

Sums & aliquot sequence

As consecutive integers: 4,398 + 4,399 + 4,400 + 4,401 + 4,402 1,995 + 1,996 + … + 2,005 868 + 869 + … + 892 672 + 673 + … + 703
Aliquot sequence: 22,000 36,032 35,596 32,444 24,340 26,816 26,524 22,476 29,996 22,504 21,596 16,204 12,160 18,440 23,140 29,780 32,800 — unresolved within range

Representations

In words
twenty-two thousand
Ordinal
22000th
Binary
101010111110000
Octal
52760
Hexadecimal
0x55F0
Base64
VfA=
One's complement
43,535 (16-bit)
In other bases
ternary (3) 1010011211
quaternary (4) 11113300
quinary (5) 1201000
senary (6) 245504
septenary (7) 121066
nonary (9) 33154
undecimal (11) 15590
duodecimal (12) 10894
tridecimal (13) a024
tetradecimal (14) 8036
pentadecimal (15) 67ba

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
Egyptian hieroglyphic
𓂍𓂍𓆼𓆼
Greek (Milesian)
͵κβ
Mayan (base 20)
𝋢·𝋯·𝋠·𝋠
Chinese
二萬二千
Chinese (financial)
貳萬貳仟
In other modern scripts
Eastern Arabic ٢٢٠٠٠ Devanagari २२००० Bengali ২২০০০ Tamil ௨௨௦௦௦ Thai ๒๒๐๐๐ Tibetan ༢༢༠༠༠ Khmer ២២០០០ Lao ໒໒໐໐໐ Burmese ၂၂၀၀၀

Digit at this position in famous constants

π — Pi (π)
Digit 22,000 = 2
e — Euler's number (e)
Digit 22,000 = 6
φ — Golden ratio (φ)
Digit 22,000 = 4
√2 — Pythagoras's (√2)
Digit 22,000 = 7
ln 2 — Natural log of 2
Digit 22,000 = 6
γ — Euler-Mascheroni (γ)
Digit 22,000 = 7

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 22000, here are decompositions:

  • 3 + 21997 = 22000
  • 23 + 21977 = 22000
  • 71 + 21929 = 22000
  • 89 + 21911 = 22000
  • 107 + 21893 = 22000
  • 137 + 21863 = 22000
  • 149 + 21851 = 22000
  • 179 + 21821 = 22000

Showing the first eight; more decompositions exist.

Unicode codepoint
CJK Unified Ideograph-55F0
U+55F0
Other letter (Lo)

UTF-8 encoding: E5 97 B0 (3 bytes).

Hex color
#0055F0
RGB(0, 85, 240)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.85.240.

Address
0.0.85.240
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.85.240

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

Position in π

The digit sequence 22000 first appears in π at position 70,660 of the decimal expansion (the 70,660ordinal-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.