13,072
13,072 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 13
- Digit product
- 0
- Digital root
- 4
- Palindrome
- No
- Bit width
- 14 bits
- Reversed
- 27,031
- Recamán's sequence
- a(48,131) = 13,072
- Square (n²)
- 170,877,184
- Cube (n³)
- 2,233,706,549,248
- Divisor count
- 20
- σ(n) — sum of divisors
- 27,280
- φ(n) — Euler's totient
- 6,048
- Sum of prime factors
- 70
Primality
Prime factorization: 2 4 × 19 × 43
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- thirteen thousand seventy-two
- Ordinal
- 13072nd
- Binary
- 11001100010000
- Octal
- 31420
- Hexadecimal
- 0x3310
- Base64
- MxA=
- One's complement
- 52,463 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓆼𓆼𓆼𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ιγοβʹ
- Mayan (base 20)
- 𝋡·𝋬·𝋭·𝋬
- Chinese
- 一萬三千零七十二
- Chinese (financial)
- 壹萬參仟零柒拾貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 13,072 = 1
- e — Euler's number (e)
- Digit 13,072 = 1
- φ — Golden ratio (φ)
- Digit 13,072 = 6
- √2 — Pythagoras's (√2)
- Digit 13,072 = 4
- ln 2 — Natural log of 2
- Digit 13,072 = 6
- γ — Euler-Mascheroni (γ)
- Digit 13,072 = 8
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 13072, here are decompositions:
- 23 + 13049 = 13072
- 29 + 13043 = 13072
- 71 + 13001 = 13072
- 89 + 12983 = 13072
- 113 + 12959 = 13072
- 131 + 12941 = 13072
- 149 + 12923 = 13072
- 173 + 12899 = 13072
Showing the first eight; more decompositions exist.
UTF-8 encoding: E3 8C 90 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.51.16.
- Address
- 0.0.51.16
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.51.16
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 13072 first appears in π at position 63,095 of the decimal expansion (the 63,095ordinal-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.