13,990
13,990 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 22
- Digit product
- 0
- Digital root
- 4
- Palindrome
- No
- Bit width
- 14 bits
- Reversed
- 9,931
- Recamán's sequence
- a(20,736) = 13,990
- Square (n²)
- 195,720,100
- Cube (n³)
- 2,738,124,199,000
- Divisor count
- 8
- σ(n) — sum of divisors
- 25,200
- φ(n) — Euler's totient
- 5,592
- Sum of prime factors
- 1,406
Primality
Prime factorization: 2 × 5 × 1399
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- thirteen thousand nine hundred ninety
- Ordinal
- 13990th
- Binary
- 11011010100110
- Octal
- 33246
- Hexadecimal
- 0x36A6
- Base64
- NqY=
- One's complement
- 51,545 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋
- Egyptian hieroglyphic
- 𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ιγϡϟʹ
- Mayan (base 20)
- 𝋡·𝋮·𝋳·𝋪
- Chinese
- 一萬三千九百九十
- Chinese (financial)
- 壹萬參仟玖佰玖拾
Digit at this position in famous constants
- π — Pi (π)
- Digit 13,990 = 2
- e — Euler's number (e)
- Digit 13,990 = 9
- φ — Golden ratio (φ)
- Digit 13,990 = 7
- √2 — Pythagoras's (√2)
- Digit 13,990 = 8
- ln 2 — Natural log of 2
- Digit 13,990 = 9
- γ — Euler-Mascheroni (γ)
- Digit 13,990 = 1
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 13990, here are decompositions:
- 23 + 13967 = 13990
- 59 + 13931 = 13990
- 83 + 13907 = 13990
- 89 + 13901 = 13990
- 107 + 13883 = 13990
- 113 + 13877 = 13990
- 131 + 13859 = 13990
- 149 + 13841 = 13990
Showing the first eight; more decompositions exist.
UTF-8 encoding: E3 9A A6 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.54.166.
- Address
- 0.0.54.166
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.54.166
Unspecified address (0.0.0.0/8) — "this network" placeholder.
This passes the ABA routing number checksum and matches the Federal Reserve numbering scheme.
Banks operate many routing numbers per state and division; an unmatched checksum-valid number can still be a real RTN at a smaller institution.
The digit sequence 13990 first appears in π at position 334,825 of the decimal expansion (the 334,825ordinal-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.