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13,456

13,456 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 Ascending Digits Gapful Number Odious Number Perfect Square Pernicious Number Powerful Number Practical Number Recamán's Sequence Semiperfect Number

Properties

Parity
Even
Digit count
5
Digit sum
19
Digit product
360
Digital root
1
Palindrome
No
Bit width
14 bits
Reversed
65,431
Recamán's sequence
a(47,363) = 13,456
Square (n²)
181,063,936
Cube (n³)
2,436,396,322,816
Square root (√n)
116
Divisor count
15
σ(n) — sum of divisors
27,001
φ(n) — Euler's totient
6,496
Sum of prime factors
66

Primality

Prime factorization: 2 4 × 29 2

Nearest primes: 13,451 (−5) · 13,457 (+1)

Divisors & multiples

All divisors (15)
1 · 2 · 4 · 8 · 16 · 29 · 58 · 116 · 232 · 464 · 841 · 1682 · 3364 · 6728 (half) · 13456
Aliquot sum (sum of proper divisors): 13,545
Factor pairs (a × b = 13,456)
1 × 13456
2 × 6728
4 × 3364
8 × 1682
16 × 841
29 × 464
58 × 232
116 × 116
First multiples
13,456 · 26,912 (double) · 40,368 · 53,824 · 67,280 · 80,736 · 94,192 · 107,648 · 121,104 · 134,560

Sums & aliquot sequence

As a sum of two squares: 0² + 116² = 80² + 84²
As consecutive integers: 450 + 451 + … + 478 405 + 406 + … + 436
Aliquot sequence: 13,456 13,545 13,911 4,641 3,423 1,825 469 75 49 8 7 1 0 — terminates at zero

Representations

In words
thirteen thousand four hundred fifty-six
Ordinal
13456th
Binary
11010010010000
Octal
32220
Hexadecimal
0x3490
Base64
NJA=
One's complement
52,079 (16-bit)
In other bases
ternary (3) 200110101
quaternary (4) 3102100
quinary (5) 412311
senary (6) 142144
septenary (7) 54142
nonary (9) 20411
undecimal (11) a123
duodecimal (12) 7954
tridecimal (13) 6181
tetradecimal (14) 4c92
pentadecimal (15) 3ec1

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ιγυνϛʹ
Mayan (base 20)
𝋡·𝋭·𝋬·𝋰
Chinese
一萬三千四百五十六
Chinese (financial)
壹萬參仟肆佰伍拾陸
In other modern scripts
Eastern Arabic ١٣٤٥٦ Devanagari १३४५६ Bengali ১৩৪৫৬ Tamil ௧௩௪௫௬ Thai ๑๓๔๕๖ Tibetan ༡༣༤༥༦ Khmer ១៣៤៥៦ Lao ໑໓໔໕໖ Burmese ၁၃၄၅၆

Digit at this position in famous constants

π — Pi (π)
Digit 13,456 = 3
e — Euler's number (e)
Digit 13,456 = 4
φ — Golden ratio (φ)
Digit 13,456 = 8
√2 — Pythagoras's (√2)
Digit 13,456 = 8
ln 2 — Natural log of 2
Digit 13,456 = 7
γ — Euler-Mascheroni (γ)
Digit 13,456 = 1

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 13456, here are decompositions:

  • 5 + 13451 = 13456
  • 59 + 13397 = 13456
  • 89 + 13367 = 13456
  • 197 + 13259 = 13456
  • 227 + 13229 = 13456
  • 239 + 13217 = 13456
  • 269 + 13187 = 13456
  • 293 + 13163 = 13456

Showing the first eight; more decompositions exist.

Unicode codepoint
CJK Unified Ideograph-3490
U+3490
Other letter (Lo)

UTF-8 encoding: E3 92 90 (3 bytes).

Hex color
#003490
RGB(0, 52, 144)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.52.144.

Address
0.0.52.144
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.52.144

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

Position in π

The digit sequence 13456 first appears in π at position 43,453 of the decimal expansion (the 43,453ordinal-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.