Number
13,729
13,729 is a prime, odd.
Properties
- Parity
- Odd
- Digit count
- 5
- Digit sum
- 22
- Digit product
- 378
- Digital root
- 4
- Palindrome
- No
- Bit width
- 14 bits
- Reversed
- 92,731
- Recamán's sequence
- a(21,258) = 13,729
- Square (n²)
- 188,485,441
- Cube (n³)
- 2,587,716,619,489
- Divisor count
- 2
- σ(n) — sum of divisors
- 13,730
- φ(n) — Euler's totient
- 13,728
Primality
13,729 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Aliquot sum (sum of proper divisors):
1
First multiples
Sums & aliquot sequence
As a sum of two squares:
52² + 105²
As consecutive integers:
6,864 + 6,865
Representations
- In words
- thirteen thousand seven hundred twenty-nine
- Ordinal
- 13729th
- Binary
- 11010110100001
- Octal
- 32641
- Hexadecimal
- 0x35A1
- Base64
- NaE=
- One's complement
- 51,806 (16-bit)
In other bases
ternary (3)
200211111
quaternary (4)
3112201
quinary (5)
414404
senary (6)
143321
septenary (7)
55012
nonary (9)
20744
undecimal (11)
a351
duodecimal (12)
7b41
tridecimal (13)
6331
tetradecimal (14)
5009
pentadecimal (15)
4104
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ιγψκθʹ
- Mayan (base 20)
- 𝋡·𝋮·𝋦·𝋩
- Chinese
- 一萬三千七百二十九
- Chinese (financial)
- 壹萬參仟柒佰貳拾玖
In other modern scripts
Eastern Arabic
١٣٧٢٩
Devanagari
१३७२९
Bengali
১৩৭২৯
Tamil
௧௩௭௨௯
Thai
๑๓๗๒๙
Tibetan
༡༣༧༢༩
Khmer
១៣៧២៩
Lao
໑໓໗໒໙
Burmese
၁၃၇၂၉
Digit at this position in famous constants
- π — Pi (π)
- Digit 13,729 = 0
- e — Euler's number (e)
- Digit 13,729 = 9
- φ — Golden ratio (φ)
- Digit 13,729 = 9
- √2 — Pythagoras's (√2)
- Digit 13,729 = 0
- ln 2 — Natural log of 2
- Digit 13,729 = 8
- γ — Euler-Mascheroni (γ)
- Digit 13,729 = 7
Also seen as
Prime neighborhood
Unicode codepoint
㖡
CJK Unified Ideograph-35A1
U+35A1
Other letter (Lo)
UTF-8 encoding: E3 96 A1 (3 bytes).
Hex color
#0035A1
RGB(0, 53, 161)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.53.161.
- Address
- 0.0.53.161
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.53.161
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Position in π
The digit sequence 13729 first appears in π at position 159,246 of the decimal expansion (the 159,246ordinal-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.