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20,104

20,104 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 Evil Number Harshad / Niven Semiperfect Number

Properties

Parity
Even
Digit count
5
Digit sum
7
Digit product
0
Digital root
7
Palindrome
No
Bit width
15 bits
Reversed
40,102
Square (n²)
404,170,816
Cube (n³)
8,125,450,084,864
Divisor count
16
σ(n) — sum of divisors
43,200
φ(n) — Euler's totient
8,592
Sum of prime factors
372

Primality

Prime factorization: 2 3 × 7 × 359

Nearest primes: 20,101 (−3) · 20,107 (+3)

Divisors & multiples

All divisors (16)
1 · 2 · 4 · 7 · 8 · 14 · 28 · 56 · 359 · 718 · 1436 · 2513 · 2872 · 5026 · 10052 (half) · 20104
Aliquot sum (sum of proper divisors): 23,096
Factor pairs (a × b = 20,104)
1 × 20104
2 × 10052
4 × 5026
7 × 2872
8 × 2513
14 × 1436
28 × 718
56 × 359
First multiples
20,104 · 40,208 (double) · 60,312 · 80,416 · 100,520 · 120,624 · 140,728 · 160,832 · 180,936 · 201,040

Sums & aliquot sequence

As consecutive integers: 2,869 + 2,870 + … + 2,875 1,249 + 1,250 + … + 1,264 124 + 125 + … + 235
Aliquot sequence: 20,104 23,096 20,224 20,656 19,396 17,256 25,944 43,176 80,664 121,056 224,688 378,448 494,512 495,504 1,012,336 1,181,968 1,182,960 — unresolved within range

Representations

In words
twenty thousand one hundred four
Ordinal
20104th
Binary
100111010001000
Octal
47210
Hexadecimal
0x4E88
Base64
Tog=
One's complement
45,431 (16-bit)
In other bases
ternary (3) 1000120121
quaternary (4) 10322020
quinary (5) 1120404
senary (6) 233024
septenary (7) 112420
nonary (9) 30517
undecimal (11) 14117
duodecimal (12) b774
tridecimal (13) 91c6
tetradecimal (14) 7480
pentadecimal (15) 5e54

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓂍𓍢𓏺𓏺𓏺𓏺
Greek (Milesian)
͵κρδʹ
Mayan (base 20)
𝋢·𝋪·𝋥·𝋤
Chinese
二萬零一百零四
Chinese (financial)
貳萬零壹佰零肆
In other modern scripts
Eastern Arabic ٢٠١٠٤ Devanagari २०१०४ Bengali ২০১০৪ Tamil ௨௦௧௦௪ Thai ๒๐๑๐๔ Tibetan ༢༠༡༠༤ Khmer ២០១០៤ Lao ໒໐໑໐໔ Burmese ၂၀၁၀၄

Digit at this position in famous constants

π — Pi (π)
Digit 20,104 = 4
e — Euler's number (e)
Digit 20,104 = 6
φ — Golden ratio (φ)
Digit 20,104 = 1
√2 — Pythagoras's (√2)
Digit 20,104 = 0
ln 2 — Natural log of 2
Digit 20,104 = 6
γ — Euler-Mascheroni (γ)
Digit 20,104 = 4

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 20104, here are decompositions:

  • 3 + 20101 = 20104
  • 41 + 20063 = 20104
  • 53 + 20051 = 20104
  • 83 + 20021 = 20104
  • 107 + 19997 = 20104
  • 113 + 19991 = 20104
  • 131 + 19973 = 20104
  • 167 + 19937 = 20104

Showing the first eight; more decompositions exist.

Unicode codepoint
CJK Unified Ideograph-4E88
U+4E88
Other letter (Lo)

UTF-8 encoding: E4 BA 88 (3 bytes).

Hex color
#004E88
RGB(0, 78, 136)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.78.136.

Address
0.0.78.136
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.78.136

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

Position in π

The digit sequence 20104 first appears in π at position 36,942 of the decimal expansion (the 36,942ordinal-suffix:nd 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.