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27,220

27,220 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 Arithmetic Number Gapful Number Odious Number Pernicious Number Recamán's Sequence Self Number Semiperfect Number

Properties

Parity
Even
Digit count
5
Digit sum
13
Digit product
0
Digital root
4
Palindrome
No
Bit width
15 bits
Reversed
2,272
Recamán's sequence
a(163,647) = 27,220
Square (n²)
740,928,400
Cube (n³)
20,168,071,048,000
Divisor count
12
σ(n) — sum of divisors
57,204
φ(n) — Euler's totient
10,880
Sum of prime factors
1,370

Primality

Prime factorization: 2 2 × 5 × 1361

Nearest primes: 27,211 (−9) · 27,239 (+19)

Divisors & multiples

All divisors (12)
1 · 2 · 4 · 5 · 10 · 20 · 1361 · 2722 · 5444 · 6805 · 13610 (half) · 27220
Aliquot sum (sum of proper divisors): 29,984
Factor pairs (a × b = 27,220)
1 × 27220
2 × 13610
4 × 6805
5 × 5444
10 × 2722
20 × 1361
First multiples
27,220 · 54,440 (double) · 81,660 · 108,880 · 136,100 · 163,320 · 190,540 · 217,760 · 244,980 · 272,200

Sums & aliquot sequence

As a sum of two squares: 18² + 164² = 84² + 142²
As consecutive integers: 5,442 + 5,443 + 5,444 + 5,445 + 5,446 3,399 + 3,400 + … + 3,406 661 + 662 + … + 700
Aliquot sequence: 27,220 29,984 29,110 25,322 16,150 17,330 13,882 8,870 7,114 3,560 4,540 5,036 3,784 4,136 4,504 3,956 3,436 — unresolved within range

Representations

In words
twenty-seven thousand two hundred twenty
Ordinal
27220th
Binary
110101001010100
Octal
65124
Hexadecimal
0x6A54
Base64
alQ=
One's complement
38,315 (16-bit)
In other bases
ternary (3) 1101100011
quaternary (4) 12221110
quinary (5) 1332340
senary (6) 330004
septenary (7) 142234
nonary (9) 41304
undecimal (11) 194a6
duodecimal (12) 13904
tridecimal (13) c50b
tetradecimal (14) 9cc4
pentadecimal (15) 80ea

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
Egyptian hieroglyphic
𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓎆𓎆
Greek (Milesian)
͵κζσκʹ
Mayan (base 20)
𝋣·𝋨·𝋡·𝋠
Chinese
二萬七千二百二十
Chinese (financial)
貳萬柒仟貳佰貳拾
In other modern scripts
Eastern Arabic ٢٧٢٢٠ Devanagari २७२२० Bengali ২৭২২০ Tamil ௨௭௨௨௦ Thai ๒๗๒๒๐ Tibetan ༢༧༢༢༠ Khmer ២៧២២០ Lao ໒໗໒໒໐ Burmese ၂၇၂၂၀

Digit at this position in famous constants

π — Pi (π)
Digit 27,220 = 3
e — Euler's number (e)
Digit 27,220 = 1
φ — Golden ratio (φ)
Digit 27,220 = 8
√2 — Pythagoras's (√2)
Digit 27,220 = 1
ln 2 — Natural log of 2
Digit 27,220 = 9
γ — Euler-Mascheroni (γ)
Digit 27,220 = 8

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 27220, here are decompositions:

  • 23 + 27197 = 27220
  • 29 + 27191 = 27220
  • 41 + 27179 = 27220
  • 113 + 27107 = 27220
  • 227 + 26993 = 27220
  • 233 + 26987 = 27220
  • 239 + 26981 = 27220
  • 269 + 26951 = 27220

Showing the first eight; more decompositions exist.

Unicode codepoint
CJK Unified Ideograph-6A54
U+6A54
Other letter (Lo)

UTF-8 encoding: E6 A9 94 (3 bytes).

Hex color
#006A54
RGB(0, 106, 84)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.106.84.

Address
0.0.106.84
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.106.84

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

Position in π

The digit sequence 27220 first appears in π at position 76,357 of the decimal expansion (the 76,357ordinal-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.