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22,018

22,018 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.).
Deficient Number Odious Number Pernicious Number Recamán's Sequence Sphenic Number Squarefree

Properties

Parity
Even
Digit count
5
Digit sum
13
Digit product
0
Digital root
4
Palindrome
No
Bit width
15 bits
Reversed
81,022
Recamán's sequence
a(167,727) = 22,018
Square (n²)
484,792,324
Cube (n³)
10,674,157,389,832
Divisor count
8
σ(n) — sum of divisors
33,660
φ(n) — Euler's totient
10,800
Sum of prime factors
212

Primality

Prime factorization: 2 × 101 × 109

Nearest primes: 22,013 (−5) · 22,027 (+9)

Divisors & multiples

All divisors (8)
1 · 2 · 101 · 109 · 202 · 218 · 11009 (half) · 22018
Aliquot sum (sum of proper divisors): 11,642
Factor pairs (a × b = 22,018)
1 × 22018
2 × 11009
101 × 218
109 × 202
First multiples
22,018 · 44,036 (double) · 66,054 · 88,072 · 110,090 · 132,108 · 154,126 · 176,144 · 198,162 · 220,180

Sums & aliquot sequence

As a sum of two squares: 57² + 137² = 83² + 123²
As consecutive integers: 5,503 + 5,504 + 5,505 + 5,506 168 + 169 + … + 268 148 + 149 + … + 256
Aliquot sequence: 22,018 11,642 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-two thousand eighteen
Ordinal
22018th
Binary
101011000000010
Octal
53002
Hexadecimal
0x5602
Base64
VgI=
One's complement
43,517 (16-bit)
In other bases
ternary (3) 1010012111
quaternary (4) 11120002
quinary (5) 1201033
senary (6) 245534
septenary (7) 121123
nonary (9) 33174
undecimal (11) 155a7
duodecimal (12) 108aa
tridecimal (13) a039
tetradecimal (14) 804a
pentadecimal (15) 67cd

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓂍𓆼𓆼𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵κβιηʹ
Mayan (base 20)
𝋢·𝋯·𝋠·𝋲
Chinese
二萬二千零一十八
Chinese (financial)
貳萬貳仟零壹拾捌
In other modern scripts
Eastern Arabic ٢٢٠١٨ Devanagari २२०१८ Bengali ২২০১৮ Tamil ௨௨௦௧௮ Thai ๒๒๐๑๘ Tibetan ༢༢༠༡༨ Khmer ២២០១៨ Lao ໒໒໐໑໘ Burmese ၂၂၀၁၈

Digit at this position in famous constants

π — Pi (π)
Digit 22,018 = 2
e — Euler's number (e)
Digit 22,018 = 7
φ — Golden ratio (φ)
Digit 22,018 = 5
√2 — Pythagoras's (√2)
Digit 22,018 = 5
ln 2 — Natural log of 2
Digit 22,018 = 6
γ — Euler-Mascheroni (γ)
Digit 22,018 = 6

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 22018, here are decompositions:

  • 5 + 22013 = 22018
  • 41 + 21977 = 22018
  • 89 + 21929 = 22018
  • 107 + 21911 = 22018
  • 137 + 21881 = 22018
  • 167 + 21851 = 22018
  • 179 + 21839 = 22018
  • 197 + 21821 = 22018

Showing the first eight; more decompositions exist.

Unicode codepoint
CJK Unified Ideograph-5602
U+5602
Other letter (Lo)

UTF-8 encoding: E5 98 82 (3 bytes).

Hex color
#005602
RGB(0, 86, 2)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.86.2.

Address
0.0.86.2
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.86.2

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

Position in π

The digit sequence 22018 first appears in π at position 69,743 of the decimal expansion (the 69,743ordinal-suffix:rd 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.