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13,608

13,608 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 Practical Number Recamán's Sequence Semiperfect Number

Properties

Parity
Even
Digit count
5
Digit sum
18
Digit product
0
Digital root
9
Palindrome
No
Bit width
14 bits
Reversed
80,631
Recamán's sequence
a(3,988) = 13,608
Square (n²)
185,177,664
Cube (n³)
2,519,897,651,712
Divisor count
48
σ(n) — sum of divisors
43,680
φ(n) — Euler's totient
3,888
Sum of prime factors
28

Primality

Prime factorization: 2 3 × 3 5 × 7

Nearest primes: 13,597 (−11) · 13,613 (+5)

Divisors & multiples

All divisors (48)
1 · 2 · 3 · 4 · 6 · 7 · 8 · 9 · 12 · 14 · 18 · 21 · 24 · 27 · 28 · 36 · 42 · 54 · 56 · 63 · 72 · 81 · 84 · 108 · 126 · 162 · 168 · 189 · 216 · 243 · 252 · 324 · 378 · 486 · 504 · 567 · 648 · 756 · 972 · 1134 · 1512 · 1701 · 1944 · 2268 · 3402 · 4536 · 6804 (half) · 13608
Aliquot sum (sum of proper divisors): 30,072
Factor pairs (a × b = 13,608)
1 × 13608
2 × 6804
3 × 4536
4 × 3402
6 × 2268
7 × 1944
8 × 1701
9 × 1512
12 × 1134
14 × 972
18 × 756
21 × 648
24 × 567
27 × 504
28 × 486
36 × 378
42 × 324
54 × 252
56 × 243
63 × 216
72 × 189
81 × 168
84 × 162
108 × 126
First multiples
13,608 · 27,216 (double) · 40,824 · 54,432 · 68,040 · 81,648 · 95,256 · 108,864 · 122,472 · 136,080

Sums & aliquot sequence

As consecutive integers: 4,535 + 4,536 + 4,537 1,941 + 1,942 + … + 1,947 1,508 + 1,509 + … + 1,516 843 + 844 + … + 858
Aliquot sequence: 13,608 30,072 56,328 84,552 143,928 246,072 369,168 584,640 1,792,800 4,769,280 13,055,472 25,275,408 40,019,520 87,045,504 209,064,576 455,126,784 929,233,536 — unresolved within range

Representations

In words
thirteen thousand six hundred eight
Ordinal
13608th
Binary
11010100101000
Octal
32450
Hexadecimal
0x3528
Base64
NSg=
One's complement
51,927 (16-bit)
In other bases
ternary (3) 200200000
quaternary (4) 3110220
quinary (5) 413413
senary (6) 143000
septenary (7) 54450
nonary (9) 20600
undecimal (11) a251
duodecimal (12) 7a60
tridecimal (13) 626a
tetradecimal (14) 4d60
pentadecimal (15) 4073

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ιγχηʹ
Mayan (base 20)
𝋡·𝋮·𝋠·𝋨
Chinese
一萬三千六百零八
Chinese (financial)
壹萬參仟陸佰零捌
In other modern scripts
Eastern Arabic ١٣٦٠٨ Devanagari १३६०८ Bengali ১৩৬০৮ Tamil ௧௩௬௦௮ Thai ๑๓๖๐๘ Tibetan ༡༣༦༠༨ Khmer ១៣៦០៨ Lao ໑໓໖໐໘ Burmese ၁၃၆၀၈

Digit at this position in famous constants

π — Pi (π)
Digit 13,608 = 1
e — Euler's number (e)
Digit 13,608 = 0
φ — Golden ratio (φ)
Digit 13,608 = 5
√2 — Pythagoras's (√2)
Digit 13,608 = 2
ln 2 — Natural log of 2
Digit 13,608 = 4
γ — Euler-Mascheroni (γ)
Digit 13,608 = 2

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 13608, here are decompositions:

  • 11 + 13597 = 13608
  • 17 + 13591 = 13608
  • 31 + 13577 = 13608
  • 41 + 13567 = 13608
  • 71 + 13537 = 13608
  • 109 + 13499 = 13608
  • 131 + 13477 = 13608
  • 139 + 13469 = 13608

Showing the first eight; more decompositions exist.

Unicode codepoint
CJK Unified Ideograph-3528
U+3528
Other letter (Lo)

UTF-8 encoding: E3 94 A8 (3 bytes).

Hex color
#003528
RGB(0, 53, 40)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.53.40.

Address
0.0.53.40
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.53.40

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

Position in π

The digit sequence 13608 first appears in π at position 89,683 of the decimal expansion (the 89,683ordinal-suffix:rd 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.