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13,985

13,985 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 Semiprime Squarefree

Properties

Parity
Odd
Digit count
5
Digit sum
26
Digit product
1,080
Digital root
8
Palindrome
No
Bit width
14 bits
Reversed
58,931
Recamán's sequence
a(20,746) = 13,985
Square (n²)
195,580,225
Cube (n³)
2,735,189,446,625
Divisor count
4
σ(n) — sum of divisors
16,788
φ(n) — Euler's totient
11,184
Sum of prime factors
2,802

Primality

Prime factorization: 5 × 2797

Nearest primes: 13,967 (−18) · 13,997 (+12)

Divisors & multiples

All divisors (4)
1 · 5 · 2797 · 13985
Aliquot sum (sum of proper divisors): 2,803
Factor pairs (a × b = 13,985)
1 × 13985
5 × 2797
First multiples
13,985 · 27,970 (double) · 41,955 · 55,940 · 69,925 · 83,910 · 97,895 · 111,880 · 125,865 · 139,850

Sums & aliquot sequence

As a sum of two squares: 23² + 116² = 79² + 88²
As consecutive integers: 6,992 + 6,993 2,795 + 2,796 + 2,797 + 2,798 + 2,799 1,394 + 1,395 + … + 1,403
Aliquot sequence: 13,985 2,803 1 0 — terminates at zero

Representations

In words
thirteen thousand nine hundred eighty-five
Ordinal
13985th
Binary
11011010100001
Octal
33241
Hexadecimal
0x36A1
Base64
NqE=
One's complement
51,550 (16-bit)
In other bases
ternary (3) 201011222
quaternary (4) 3122201
quinary (5) 421420
senary (6) 144425
septenary (7) 55526
nonary (9) 21158
undecimal (11) a564
duodecimal (12) 8115
tridecimal (13) 649a
tetradecimal (14) 514d
pentadecimal (15) 4225

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ιγϡπεʹ
Mayan (base 20)
𝋡·𝋮·𝋳·𝋥
Chinese
一萬三千九百八十五
Chinese (financial)
壹萬參仟玖佰捌拾伍
In other modern scripts
Eastern Arabic ١٣٩٨٥ Devanagari १३९८५ Bengali ১৩৯৮৫ Tamil ௧௩௯௮௫ Thai ๑๓๙๘๕ Tibetan ༡༣༩༨༥ Khmer ១៣៩៨៥ Lao ໑໓໙໘໕ Burmese ၁၃၉၈၅

Digit at this position in famous constants

π — Pi (π)
Digit 13,985 = 9
e — Euler's number (e)
Digit 13,985 = 8
φ — Golden ratio (φ)
Digit 13,985 = 4
√2 — Pythagoras's (√2)
Digit 13,985 = 0
ln 2 — Natural log of 2
Digit 13,985 = 6
γ — Euler-Mascheroni (γ)
Digit 13,985 = 1

Also seen as

Unicode codepoint
CJK Unified Ideograph-36A1
U+36A1
Other letter (Lo)

UTF-8 encoding: E3 9A A1 (3 bytes).

Hex color
#0036A1
RGB(0, 54, 161)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.54.161.

Address
0.0.54.161
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.54.161

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

Position in π

The digit sequence 13985 first appears in π at position 76,673 of the decimal expansion (the 76,673ordinal-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.