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13,860

13,860 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 Gapful Number Harshad / Niven Pell Number Practical Number Recamán's Sequence Weird Number

Properties

Parity
Even
Digit count
5
Digit sum
18
Digit product
0
Digital root
9
Palindrome
No
Bit width
14 bits
Reversed
6,831
Recamán's sequence
a(20,996) = 13,860
Square (n²)
192,099,600
Cube (n³)
2,662,500,456,000
Divisor count
72
σ(n) — sum of divisors
52,416
φ(n) — Euler's totient
2,880
Sum of prime factors
33

Primality

Prime factorization: 2 2 × 3 2 × 5 × 7 × 11

Nearest primes: 13,859 (−1) · 13,873 (+13)

Divisors & multiples

All divisors (72)
1 · 2 · 3 · 4 · 5 · 6 · 7 · 9 · 10 · 11 · 12 · 14 · 15 · 18 · 20 · 21 · 22 · 28 · 30 · 33 · 35 · 36 · 42 · 44 · 45 · 55 · 60 · 63 · 66 · 70 · 77 · 84 · 90 · 99 · 105 · 110 · 126 · 132 · 140 · 154 · 165 · 180 · 198 · 210 · 220 · 231 · 252 · 308 · 315 · 330 · 385 · 396 · 420 · 462 · 495 · 630 · 660 · 693 · 770 · 924 · 990 · 1155 · 1260 · 1386 · 1540 · 1980 · 2310 · 2772 · 3465 · 4620 · 6930 (half) · 13860
Aliquot sum (sum of proper divisors): 38,556
Factor pairs (a × b = 13,860)
1 × 13860
2 × 6930
3 × 4620
4 × 3465
5 × 2772
6 × 2310
7 × 1980
9 × 1540
10 × 1386
11 × 1260
12 × 1155
14 × 990
15 × 924
18 × 770
20 × 693
21 × 660
22 × 630
28 × 495
30 × 462
33 × 420
35 × 396
36 × 385
42 × 330
44 × 315
45 × 308
55 × 252
60 × 231
63 × 220
66 × 210
70 × 198
77 × 180
84 × 165
90 × 154
99 × 140
105 × 132
110 × 126
First multiples
13,860 · 27,720 (double) · 41,580 · 55,440 · 69,300 · 83,160 · 97,020 · 110,880 · 124,740 · 138,600

Sums & aliquot sequence

As consecutive integers: 4,619 + 4,620 + 4,621 2,770 + 2,771 + 2,772 + 2,773 + 2,774 1,977 + 1,978 + … + 1,983 1,729 + 1,730 + … + 1,736
Aliquot sequence: 13,860 38,556 83,412 158,284 158,340 406,140 894,852 1,778,364 3,359,860 4,817,036 4,930,324 5,198,956 5,199,012 12,143,068 12,143,124 22,937,740 32,113,172 — unresolved within range

Representations

In words
thirteen thousand eight hundred sixty
Ordinal
13860th
Binary
11011000100100
Octal
33044
Hexadecimal
0x3624
Base64
NiQ=
One's complement
51,675 (16-bit)
In other bases
ternary (3) 201000100
quaternary (4) 3120210
quinary (5) 420420
senary (6) 144100
septenary (7) 55260
nonary (9) 21010
undecimal (11) a460
duodecimal (12) 8030
tridecimal (13) 6402
tetradecimal (14) 50a0
pentadecimal (15) 4190

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹 ·
Egyptian hieroglyphic
𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆
Greek (Milesian)
͵ιγωξʹ
Mayan (base 20)
𝋡·𝋮·𝋭·𝋠
Chinese
一萬三千八百六十
Chinese (financial)
壹萬參仟捌佰陸拾
In other modern scripts
Eastern Arabic ١٣٨٦٠ Devanagari १३८६० Bengali ১৩৮৬০ Tamil ௧௩௮௬௦ Thai ๑๓๘๖๐ Tibetan ༡༣༨༦༠ Khmer ១៣៨៦០ Lao ໑໓໘໖໐ Burmese ၁၃၈၆၀

Digit at this position in famous constants

π — Pi (π)
Digit 13,860 = 3
e — Euler's number (e)
Digit 13,860 = 2
φ — Golden ratio (φ)
Digit 13,860 = 7
√2 — Pythagoras's (√2)
Digit 13,860 = 8
ln 2 — Natural log of 2
Digit 13,860 = 5
γ — Euler-Mascheroni (γ)
Digit 13,860 = 6

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 13860, here are decompositions:

  • 19 + 13841 = 13860
  • 29 + 13831 = 13860
  • 31 + 13829 = 13860
  • 53 + 13807 = 13860
  • 61 + 13799 = 13860
  • 71 + 13789 = 13860
  • 79 + 13781 = 13860
  • 97 + 13763 = 13860

Showing the first eight; more decompositions exist.

Unicode codepoint
CJK Unified Ideograph-3624
U+3624
Other letter (Lo)

UTF-8 encoding: E3 98 A4 (3 bytes).

Hex color
#003624
RGB(0, 54, 36)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.54.36.

Address
0.0.54.36
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.54.36

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

Position in π

The digit sequence 13860 first appears in π at position 212,166 of the decimal expansion (the 212,166ordinal-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.