13,242
13,242 is a composite number, even.
13,242 (thirteen thousand two hundred forty-two) is an even 5-digit number. It is a composite number with 8 divisors, and factors as 2 × 3 × 2,207. Its proper divisors sum to 13,254, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x33BA.
Interestingness
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 12
- Digit product
- 48
- Digital root
- 3
- Palindrome
- No
- Bit width
- 14 bits
- Reversed
- 24,231
- Recamán's sequence
- a(47,791) = 13,242
- Square (n²)
- 175,350,564
- Cube (n³)
- 2,321,992,168,488
- Divisor count
- 8
- σ(n) — sum of divisors
- 26,496
- φ(n) — Euler's totient
- 4,412
- Sum of prime factors
- 2,212
Primality
Prime factorization: 2 × 3 × 2207
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√13,242 = [115; (13, 1, 1, 6, 1, 9, 1, 1, 2, 6, 1, 1, 2, 1, 2, 2, 1, 1, 5, 38, 5, 1, 1, 2, …)]
Period length 40 — the block in parentheses repeats forever.
Representations
- In words
- thirteen thousand two hundred forty-two
- Ordinal
- 13242nd
- Binary
- 11001110111010
- Octal
- 31672
- Hexadecimal
- 0x33BA
- Base64
- M7o=
- One's complement
- 52,293 (16-bit)
- Scientific notation
- 1.3242 × 10⁴
- As a duration
- 13,242 s = 3 hours, 40 minutes, 42 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹 𒌋𒌋𒌋𒌋 𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓆼𓆼𓆼𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ιγσμβʹ
- Mayan (base 20)
- 𝋡·𝋭·𝋢·𝋢
- Chinese
- 一萬三千二百四十二
- Chinese (financial)
- 壹萬參仟貳佰肆拾貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 13,242 = 0
- e — Euler's number (e)
- Digit 13,242 = 8
- φ — Golden ratio (φ)
- Digit 13,242 = 9
- √2 — Pythagoras's (√2)
- Digit 13,242 = 3
- ln 2 — Natural log of 2
- Digit 13,242 = 3
- γ — Euler-Mascheroni (γ)
- Digit 13,242 = 2
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 13242, here are decompositions:
- 13 + 13229 = 13242
- 23 + 13219 = 13242
- 59 + 13183 = 13242
- 71 + 13171 = 13242
- 79 + 13163 = 13242
- 83 + 13159 = 13242
- 139 + 13103 = 13242
- 149 + 13093 = 13242
Showing the first eight; more decompositions exist.
UTF-8 encoding: E3 8E BA (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.51.186.
- Address
- 0.0.51.186
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.51.186
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 13,242 Hz is closest to:
- Concert pitch (A4 = 440 Hz): G♯9 (13289.8 Hz, -6¢)
- Scientific pitch (C4 = 256 Hz): G♯9 (13004 Hz, +31¢)
- Baroque pitch (A4 = 415 Hz): A9 (13280 Hz, -5¢)
The digit sequence 13242 first appears in π at position 102,057 of the decimal expansion (the 102,057ordinal-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.
Related reading
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.