13,040
13,040 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 8
- Digit product
- 0
- Digital root
- 8
- Palindrome
- No
- Bit width
- 14 bits
- Reversed
- 4,031
- Recamán's sequence
- a(48,195) = 13,040
- Square (n²)
- 170,041,600
- Cube (n³)
- 2,217,342,464,000
- Divisor count
- 20
- σ(n) — sum of divisors
- 30,504
- φ(n) — Euler's totient
- 5,184
- Sum of prime factors
- 176
Primality
Prime factorization: 2 4 × 5 × 163
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- thirteen thousand forty
- Ordinal
- 13040th
- Binary
- 11001011110000
- Octal
- 31360
- Hexadecimal
- 0x32F0
- Base64
- MvA=
- One's complement
- 52,495 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓂍𓆼𓆼𓆼𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ιγμʹ
- Mayan (base 20)
- 𝋡·𝋬·𝋬·𝋠
- Chinese
- 一萬三千零四十
- Chinese (financial)
- 壹萬參仟零肆拾
Digit at this position in famous constants
- π — Pi (π)
- Digit 13,040 = 6
- e — Euler's number (e)
- Digit 13,040 = 0
- φ — Golden ratio (φ)
- Digit 13,040 = 9
- √2 — Pythagoras's (√2)
- Digit 13,040 = 8
- ln 2 — Natural log of 2
- Digit 13,040 = 8
- γ — Euler-Mascheroni (γ)
- Digit 13,040 = 3
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 13040, here are decompositions:
- 3 + 13037 = 13040
- 7 + 13033 = 13040
- 31 + 13009 = 13040
- 37 + 13003 = 13040
- 61 + 12979 = 13040
- 67 + 12973 = 13040
- 73 + 12967 = 13040
- 151 + 12889 = 13040
Showing the first eight; more decompositions exist.
UTF-8 encoding: E3 8B B0 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.50.240.
- Address
- 0.0.50.240
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.50.240
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 13040 first appears in π at position 19,629 of the decimal expansion (the 19,629ordinal-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.