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13,481

13,481 is a composite number, odd.

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.).
Arithmetic Number Deficient Number Happy Number Harshad / Niven Odious Number Pernicious Number Recamán's Sequence Sphenic Number Squarefree

Properties

Parity
Odd
Digit count
5
Digit sum
17
Digit product
96
Digital root
8
Palindrome
No
Bit width
14 bits
Reversed
18,431
Recamán's sequence
a(47,313) = 13,481
Square (n²)
181,737,361
Cube (n³)
2,450,001,363,641
Divisor count
8
σ(n) — sum of divisors
15,624
φ(n) — Euler's totient
11,520
Sum of prime factors
91

Primality

Prime factorization: 13 × 17 × 61

Nearest primes: 13,477 (−4) · 13,487 (+6)

Divisors & multiples

All divisors (8)
1 · 13 · 17 · 61 · 221 · 793 · 1037 · 13481
Aliquot sum (sum of proper divisors): 2,143
Factor pairs (a × b = 13,481)
1 × 13481
13 × 1037
17 × 793
61 × 221
First multiples
13,481 · 26,962 (double) · 40,443 · 53,924 · 67,405 · 80,886 · 94,367 · 107,848 · 121,329 · 134,810

Sums & aliquot sequence

As a sum of two squares: 5² + 116² = 16² + 115² = 40² + 109² = 59² + 100²
As consecutive integers: 6,740 + 6,741 1,031 + 1,032 + … + 1,043 785 + 786 + … + 801 506 + 507 + … + 531
Aliquot sequence: 13,481 2,143 1 0 — terminates at zero

Representations

In words
thirteen thousand four hundred eighty-one
Ordinal
13481st
Binary
11010010101001
Octal
32251
Hexadecimal
0x34A9
Base64
NKk=
One's complement
52,054 (16-bit)
In other bases
ternary (3) 200111022
quaternary (4) 3102221
quinary (5) 412411
senary (6) 142225
septenary (7) 54206
nonary (9) 20438
undecimal (11) a146
duodecimal (12) 7975
tridecimal (13) 61a0
tetradecimal (14) 4cad
pentadecimal (15) 3edb

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹
Egyptian hieroglyphic
𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺
Greek (Milesian)
͵ιγυπαʹ
Mayan (base 20)
𝋡·𝋭·𝋮·𝋡
Chinese
一萬三千四百八十一
Chinese (financial)
壹萬參仟肆佰捌拾壹
In other modern scripts
Eastern Arabic ١٣٤٨١ Devanagari १३४८१ Bengali ১৩৪৮১ Tamil ௧௩௪௮௧ Thai ๑๓๔๘๑ Tibetan ༡༣༤༨༡ Khmer ១៣៤៨១ Lao ໑໓໔໘໑ Burmese ၁၃၄၈၁

Digit at this position in famous constants

π — Pi (π)
Digit 13,481 = 5
e — Euler's number (e)
Digit 13,481 = 1
φ — Golden ratio (φ)
Digit 13,481 = 2
√2 — Pythagoras's (√2)
Digit 13,481 = 1
ln 2 — Natural log of 2
Digit 13,481 = 8
γ — Euler-Mascheroni (γ)
Digit 13,481 = 1

Also seen as

Unicode codepoint
CJK Unified Ideograph-34A9
U+34A9
Other letter (Lo)

UTF-8 encoding: E3 92 A9 (3 bytes).

Hex color
#0034A9
RGB(0, 52, 169)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.52.169.

Address
0.0.52.169
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.52.169

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

Position in π

The digit sequence 13481 first appears in π at position 76,829 of the decimal expansion (the 76,829ordinal-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.