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27,040

27,040 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 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
4,072
Recamán's sequence
a(8,635) = 27,040
Square (n²)
731,161,600
Cube (n³)
19,770,609,664,000
Divisor count
36
σ(n) — sum of divisors
69,174
φ(n) — Euler's totient
9,984
Sum of prime factors
41

Primality

Prime factorization: 2 5 × 5 × 13 2

Nearest primes: 27,031 (−9) · 27,043 (+3)

Divisors & multiples

All divisors (36)
1 · 2 · 4 · 5 · 8 · 10 · 13 · 16 · 20 · 26 · 32 · 40 · 52 · 65 · 80 · 104 · 130 · 160 · 169 · 208 · 260 · 338 · 416 · 520 · 676 · 845 · 1040 · 1352 · 1690 · 2080 · 2704 · 3380 · 5408 · 6760 · 13520 (half) · 27040
Aliquot sum (sum of proper divisors): 42,134
Factor pairs (a × b = 27,040)
1 × 27040
2 × 13520
4 × 6760
5 × 5408
8 × 3380
10 × 2704
13 × 2080
16 × 1690
20 × 1352
26 × 1040
32 × 845
40 × 676
52 × 520
65 × 416
80 × 338
104 × 260
130 × 208
160 × 169
First multiples
27,040 · 54,080 (double) · 81,120 · 108,160 · 135,200 · 162,240 · 189,280 · 216,320 · 243,360 · 270,400

Sums & aliquot sequence

As a sum of two squares: 12² + 164² = 52² + 156² = 108² + 124²
As consecutive integers: 5,406 + 5,407 + 5,408 + 5,409 + 5,410 2,074 + 2,075 + … + 2,086 391 + 392 + … + 454 384 + 385 + … + 448
Aliquot sequence: 27,040 42,134 21,070 24,074 12,040 19,640 24,640 48,512 48,388 36,298 18,152 15,898 7,952 9,904 9,316 8,072 7,078 — unresolved within range

Representations

In words
twenty-seven thousand forty
Ordinal
27040th
Binary
110100110100000
Octal
64640
Hexadecimal
0x69A0
Base64
aaA=
One's complement
38,495 (16-bit)
In other bases
ternary (3) 1101002111
quaternary (4) 12212200
quinary (5) 1331130
senary (6) 325104
septenary (7) 141556
nonary (9) 41074
undecimal (11) 19352
duodecimal (12) 13794
tridecimal (13) c400
tetradecimal (14) 9bd6
pentadecimal (15) 802a

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋 𒌋𒌋𒌋𒌋
Egyptian hieroglyphic
𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓎆𓎆𓎆𓎆
Greek (Milesian)
͵κζμʹ
Mayan (base 20)
𝋣·𝋧·𝋬·𝋠
Chinese
二萬七千零四十
Chinese (financial)
貳萬柒仟零肆拾
In other modern scripts
Eastern Arabic ٢٧٠٤٠ Devanagari २७०४० Bengali ২৭০৪০ Tamil ௨௭௦௪௦ Thai ๒๗๐๔๐ Tibetan ༢༧༠༤༠ Khmer ២៧០៤០ Lao ໒໗໐໔໐ Burmese ၂၇၀၄၀

Digit at this position in famous constants

π — Pi (π)
Digit 27,040 = 8
e — Euler's number (e)
Digit 27,040 = 4
φ — Golden ratio (φ)
Digit 27,040 = 8
√2 — Pythagoras's (√2)
Digit 27,040 = 8
ln 2 — Natural log of 2
Digit 27,040 = 2
γ — Euler-Mascheroni (γ)
Digit 27,040 = 1

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 27040, here are decompositions:

  • 23 + 27017 = 27040
  • 29 + 27011 = 27040
  • 47 + 26993 = 27040
  • 53 + 26987 = 27040
  • 59 + 26981 = 27040
  • 89 + 26951 = 27040
  • 113 + 26927 = 27040
  • 137 + 26903 = 27040

Showing the first eight; more decompositions exist.

Unicode codepoint
CJK Unified Ideograph-69A0
U+69A0
Other letter (Lo)

UTF-8 encoding: E6 A6 A0 (3 bytes).

Hex color
#0069A0
RGB(0, 105, 160)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.105.160.

Address
0.0.105.160
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.105.160

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

Position in π

The digit sequence 27040 first appears in π at position 342,446 of the decimal expansion (the 342,446ordinal-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.