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40,140

40,140 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 Harshad / Niven Practical Number Semiperfect Number

Properties

Parity
Even
Digit count
5
Digit sum
9
Digit product
0
Digital root
9
Palindrome
No
Bit width
16 bits
Reversed
4,104
Square (n²)
1,611,219,600
Cube (n³)
64,674,354,744,000
Divisor count
36
σ(n) — sum of divisors
122,304
φ(n) — Euler's totient
10,656
Sum of prime factors
238

Primality

Prime factorization: 2 2 × 3 2 × 5 × 223

Nearest primes: 40,129 (−11) · 40,151 (+11)

Divisors & multiples

All divisors (36)
1 · 2 · 3 · 4 · 5 · 6 · 9 · 10 · 12 · 15 · 18 · 20 · 30 · 36 · 45 · 60 · 90 · 180 · 223 · 446 · 669 · 892 · 1115 · 1338 · 2007 · 2230 · 2676 · 3345 · 4014 · 4460 · 6690 · 8028 · 10035 · 13380 · 20070 (half) · 40140
Aliquot sum (sum of proper divisors): 82,164
Factor pairs (a × b = 40,140)
1 × 40140
2 × 20070
3 × 13380
4 × 10035
5 × 8028
6 × 6690
9 × 4460
10 × 4014
12 × 3345
15 × 2676
18 × 2230
20 × 2007
30 × 1338
36 × 1115
45 × 892
60 × 669
90 × 446
180 × 223
First multiples
40,140 · 80,280 (double) · 120,420 · 160,560 · 200,700 · 240,840 · 280,980 · 321,120 · 361,260 · 401,400

Sums & aliquot sequence

As consecutive integers: 13,379 + 13,380 + 13,381 8,026 + 8,027 + 8,028 + 8,029 + 8,030 5,014 + 5,015 + … + 5,021 4,456 + 4,457 + … + 4,464
Aliquot sequence: 40,140 82,164 115,404 160,116 247,788 378,656 366,886 235,898 155,878 82,082 87,262 69,410 67,102 47,954 23,980 31,460 46,744 — unresolved within range

Representations

In words
forty thousand one hundred forty
Ordinal
40140th
Binary
1001110011001100
Octal
116314
Hexadecimal
0x9CCC
Base64
nMw=
One's complement
25,395 (16-bit)
In other bases
ternary (3) 2001001200
quaternary (4) 21303030
quinary (5) 2241030
senary (6) 505500
septenary (7) 225012
nonary (9) 61050
undecimal (11) 28181
duodecimal (12) 1b290
tridecimal (13) 15369
tetradecimal (14) 108b2
pentadecimal (15) bd60

Historical numeral systems

Babylonian (base 60)
𒌋𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 ·
Egyptian hieroglyphic
𓂍𓂍𓂍𓂍𓍢𓎆𓎆𓎆𓎆
Greek (Milesian)
͵μρμʹ
Mayan (base 20)
𝋥·𝋠·𝋧·𝋠
Chinese
四萬零一百四十
Chinese (financial)
肆萬零壹佰肆拾
In other modern scripts
Eastern Arabic ٤٠١٤٠ Devanagari ४०१४० Bengali ৪০১৪০ Tamil ௪௦௧௪௦ Thai ๔๐๑๔๐ Tibetan ༤༠༡༤༠ Khmer ៤០១៤០ Lao ໔໐໑໔໐ Burmese ၄၀၁၄၀

Digit at this position in famous constants

π — Pi (π)
Digit 40,140 = 0
e — Euler's number (e)
Digit 40,140 = 3
φ — Golden ratio (φ)
Digit 40,140 = 0
√2 — Pythagoras's (√2)
Digit 40,140 = 5
ln 2 — Natural log of 2
Digit 40,140 = 9
γ — Euler-Mascheroni (γ)
Digit 40,140 = 1

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 40140, here are decompositions:

  • 11 + 40129 = 40140
  • 13 + 40127 = 40140
  • 17 + 40123 = 40140
  • 29 + 40111 = 40140
  • 41 + 40099 = 40140
  • 47 + 40093 = 40140
  • 53 + 40087 = 40140
  • 101 + 40039 = 40140

Showing the first eight; more decompositions exist.

Unicode codepoint
CJK Unified Ideograph-9Ccc
U+9CCC
Other letter (Lo)

UTF-8 encoding: E9 B3 8C (3 bytes).

Hex color
#009CCC
RGB(0, 156, 204)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.156.204.

Address
0.0.156.204
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.156.204

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

Position in π

The digit sequence 40140 first appears in π at position 150,339 of the decimal expansion (the 150,339ordinal-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.