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13,750

13,750 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 Gapful Number Odious Number Recamán's Sequence Semiperfect Number

Properties

Parity
Even
Digit count
5
Digit sum
16
Digit product
0
Digital root
7
Palindrome
No
Bit width
14 bits
Reversed
5,731
Recamán's sequence
a(21,216) = 13,750
Square (n²)
189,062,500
Cube (n³)
2,599,609,375,000
Divisor count
20
σ(n) — sum of divisors
28,116
φ(n) — Euler's totient
5,000
Sum of prime factors
33

Primality

Prime factorization: 2 × 5 4 × 11

Nearest primes: 13,729 (−21) · 13,751 (+1)

Divisors & multiples

All divisors (20)
1 · 2 · 5 · 10 · 11 · 22 · 25 · 50 · 55 · 110 · 125 · 250 · 275 · 550 · 625 · 1250 · 1375 · 2750 · 6875 (half) · 13750
Aliquot sum (sum of proper divisors): 14,366
Factor pairs (a × b = 13,750)
1 × 13750
2 × 6875
5 × 2750
10 × 1375
11 × 1250
22 × 625
25 × 550
50 × 275
55 × 250
110 × 125
First multiples
13,750 · 27,500 (double) · 41,250 · 55,000 · 68,750 · 82,500 · 96,250 · 110,000 · 123,750 · 137,500

Sums & aliquot sequence

As consecutive integers: 3,436 + 3,437 + 3,438 + 3,439 2,748 + 2,749 + 2,750 + 2,751 + 2,752 1,245 + 1,246 + … + 1,255 678 + 679 + … + 697
Aliquot sequence: 13,750 14,366 9,178 5,690 4,570 3,674 2,374 1,190 1,402 704 820 944 916 694 350 394 200 — unresolved within range

Representations

In words
thirteen thousand seven hundred fifty
Ordinal
13750th
Binary
11010110110110
Octal
32666
Hexadecimal
0x35B6
Base64
NbY=
One's complement
51,785 (16-bit)
In other bases
ternary (3) 200212021
quaternary (4) 3112312
quinary (5) 420000
senary (6) 143354
septenary (7) 55042
nonary (9) 20767
undecimal (11) a370
duodecimal (12) 7b5a
tridecimal (13) 6349
tetradecimal (14) 5022
pentadecimal (15) 411a

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋
Egyptian hieroglyphic
𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆
Greek (Milesian)
͵ιγψνʹ
Mayan (base 20)
𝋡·𝋮·𝋧·𝋪
Chinese
一萬三千七百五十
Chinese (financial)
壹萬參仟柒佰伍拾
In other modern scripts
Eastern Arabic ١٣٧٥٠ Devanagari १३७५० Bengali ১৩৭৫০ Tamil ௧௩௭௫௦ Thai ๑๓๗๕๐ Tibetan ༡༣༧༥༠ Khmer ១៣៧៥០ Lao ໑໓໗໕໐ Burmese ၁၃၇၅၀

Digit at this position in famous constants

π — Pi (π)
Digit 13,750 = 8
e — Euler's number (e)
Digit 13,750 = 7
φ — Golden ratio (φ)
Digit 13,750 = 9
√2 — Pythagoras's (√2)
Digit 13,750 = 0
ln 2 — Natural log of 2
Digit 13,750 = 6
γ — Euler-Mascheroni (γ)
Digit 13,750 = 8

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 13750, here are decompositions:

  • 29 + 13721 = 13750
  • 41 + 13709 = 13750
  • 53 + 13697 = 13750
  • 59 + 13691 = 13750
  • 71 + 13679 = 13750
  • 101 + 13649 = 13750
  • 131 + 13619 = 13750
  • 137 + 13613 = 13750

Showing the first eight; more decompositions exist.

Unicode codepoint
CJK Unified Ideograph-35B6
U+35B6
Other letter (Lo)

UTF-8 encoding: E3 96 B6 (3 bytes).

Hex color
#0035B6
RGB(0, 53, 182)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.53.182.

Address
0.0.53.182
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.53.182

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

Position in π

The digit sequence 13750 first appears in π at position 70,370 of the decimal expansion (the 70,370ordinal-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.