13,988
13,988 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 29
- Digit product
- 1,728
- Digital root
- 2
- Palindrome
- No
- Bit width
- 14 bits
- Reversed
- 88,931
- Recamán's sequence
- a(20,740) = 13,988
- Square (n²)
- 195,664,144
- Cube (n³)
- 2,736,950,046,272
- Divisor count
- 12
- σ(n) — sum of divisors
- 26,460
- φ(n) — Euler's totient
- 6,432
- Sum of prime factors
- 286
Primality
Prime factorization: 2 2 × 13 × 269
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- thirteen thousand nine hundred eighty-eight
- Ordinal
- 13988th
- Binary
- 11011010100100
- Octal
- 33244
- Hexadecimal
- 0x36A4
- Base64
- NqQ=
- One's complement
- 51,547 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ιγϡπηʹ
- Mayan (base 20)
- 𝋡·𝋮·𝋳·𝋨
- Chinese
- 一萬三千九百八十八
- Chinese (financial)
- 壹萬參仟玖佰捌拾捌
Digit at this position in famous constants
- π — Pi (π)
- Digit 13,988 = 8
- e — Euler's number (e)
- Digit 13,988 = 2
- φ — Golden ratio (φ)
- Digit 13,988 = 1
- √2 — Pythagoras's (√2)
- Digit 13,988 = 8
- ln 2 — Natural log of 2
- Digit 13,988 = 4
- γ — Euler-Mascheroni (γ)
- Digit 13,988 = 9
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 13988, here are decompositions:
- 67 + 13921 = 13988
- 109 + 13879 = 13988
- 157 + 13831 = 13988
- 181 + 13807 = 13988
- 199 + 13789 = 13988
- 229 + 13759 = 13988
- 277 + 13711 = 13988
- 307 + 13681 = 13988
Showing the first eight; more decompositions exist.
UTF-8 encoding: E3 9A A4 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.54.164.
- Address
- 0.0.54.164
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.54.164
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 13988 first appears in π at position 124,669 of the decimal expansion (the 124,669ordinal-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.