13,980
13,980 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 21
- Digit product
- 0
- Digital root
- 3
- Palindrome
- No
- Bit width
- 14 bits
- Reversed
- 8,931
- Recamán's sequence
- a(20,756) = 13,980
- Square (n²)
- 195,440,400
- Cube (n³)
- 2,732,256,792,000
- Divisor count
- 24
- σ(n) — sum of divisors
- 39,312
- φ(n) — Euler's totient
- 3,712
- Sum of prime factors
- 245
Primality
Prime factorization: 2 2 × 3 × 5 × 233
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- thirteen thousand nine hundred eighty
- Ordinal
- 13980th
- Binary
- 11011010011100
- Octal
- 33234
- Hexadecimal
- 0x369C
- Base64
- Npw=
- One's complement
- 51,555 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹 ·
- Egyptian hieroglyphic
- 𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ιγϡπʹ
- Mayan (base 20)
- 𝋡·𝋮·𝋳·𝋠
- Chinese
- 一萬三千九百八十
- Chinese (financial)
- 壹萬參仟玖佰捌拾
Digit at this position in famous constants
- π — Pi (π)
- Digit 13,980 = 2
- e — Euler's number (e)
- Digit 13,980 = 5
- φ — Golden ratio (φ)
- Digit 13,980 = 1
- √2 — Pythagoras's (√2)
- Digit 13,980 = 6
- ln 2 — Natural log of 2
- Digit 13,980 = 3
- γ — Euler-Mascheroni (γ)
- Digit 13,980 = 0
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 13980, here are decompositions:
- 13 + 13967 = 13980
- 17 + 13963 = 13980
- 47 + 13933 = 13980
- 59 + 13921 = 13980
- 67 + 13913 = 13980
- 73 + 13907 = 13980
- 79 + 13901 = 13980
- 97 + 13883 = 13980
Showing the first eight; more decompositions exist.
UTF-8 encoding: E3 9A 9C (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.54.156.
- Address
- 0.0.54.156
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.54.156
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 13980 first appears in π at position 114,610 of the decimal expansion (the 114,610ordinal-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.