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13,345

13,345 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 Odious Number Pernicious Number Recamán's Sequence Sphenic Number Squarefree

Properties

Parity
Odd
Digit count
5
Digit sum
16
Digit product
180
Digital root
7
Palindrome
No
Bit width
14 bits
Reversed
54,331
Recamán's sequence
a(47,585) = 13,345
Square (n²)
178,089,025
Cube (n³)
2,376,598,038,625
Divisor count
8
σ(n) — sum of divisors
17,064
φ(n) — Euler's totient
9,984
Sum of prime factors
179

Primality

Prime factorization: 5 × 17 × 157

Nearest primes: 13,339 (−6) · 13,367 (+22)

Divisors & multiples

All divisors (8)
1 · 5 · 17 · 85 · 157 · 785 · 2669 · 13345
Aliquot sum (sum of proper divisors): 3,719
Factor pairs (a × b = 13,345)
1 × 13345
5 × 2669
17 × 785
85 × 157
First multiples
13,345 · 26,690 (double) · 40,035 · 53,380 · 66,725 · 80,070 · 93,415 · 106,760 · 120,105 · 133,450

Sums & aliquot sequence

As a sum of two squares: 24² + 113² = 32² + 111² = 41² + 108² = 76² + 87²
As consecutive integers: 6,672 + 6,673 2,667 + 2,668 + 2,669 + 2,670 + 2,671 1,330 + 1,331 + … + 1,339 777 + 778 + … + 793
Aliquot sequence: 13,345 3,719 1 0 — terminates at zero

Representations

In words
thirteen thousand three hundred forty-five
Ordinal
13345th
Binary
11010000100001
Octal
32041
Hexadecimal
0x3421
Base64
NCE=
One's complement
52,190 (16-bit)
In other bases
ternary (3) 200022021
quaternary (4) 3100201
quinary (5) 411340
senary (6) 141441
septenary (7) 53623
nonary (9) 20267
undecimal (11) a032
duodecimal (12) 7881
tridecimal (13) 60c7
tetradecimal (14) 4c13
pentadecimal (15) 3e4a

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ιγτμεʹ
Mayan (base 20)
𝋡·𝋭·𝋧·𝋥
Chinese
一萬三千三百四十五
Chinese (financial)
壹萬參仟參佰肆拾伍
In other modern scripts
Eastern Arabic ١٣٣٤٥ Devanagari १३३४५ Bengali ১৩৩৪৫ Tamil ௧௩௩௪௫ Thai ๑๓๓๔๕ Tibetan ༡༣༣༤༥ Khmer ១៣៣៤៥ Lao ໑໓໓໔໕ Burmese ၁၃၃၄၅

Digit at this position in famous constants

π — Pi (π)
Digit 13,345 = 8
e — Euler's number (e)
Digit 13,345 = 1
φ — Golden ratio (φ)
Digit 13,345 = 5
√2 — Pythagoras's (√2)
Digit 13,345 = 2
ln 2 — Natural log of 2
Digit 13,345 = 6
γ — Euler-Mascheroni (γ)
Digit 13,345 = 1

Also seen as

Unicode codepoint
CJK Unified Ideograph-3421
U+3421
Other letter (Lo)

UTF-8 encoding: E3 90 A1 (3 bytes).

Hex color
#003421
RGB(0, 52, 33)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.52.33.

Address
0.0.52.33
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.52.33

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

Position in π

The digit sequence 13345 first appears in π at position 160,669 of the decimal expansion (the 160,669ordinal-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.