12,426
12,426 is a composite number, even.
12,426 (twelve thousand four hundred twenty-six) is an even 5-digit number. It is a composite number with 16 divisors, and factors as 2 × 3 × 19 × 109. Its proper divisors sum to 13,974, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x308A.
Interestingness
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 15
- Digit product
- 96
- Digital root
- 6
- Palindrome
- No
- Bit width
- 14 bits
- Reversed
- 62,421
- Recamán's sequence
- a(21,932) = 12,426
- Square (n²)
- 154,405,476
- Cube (n³)
- 1,918,642,444,776
- Divisor count
- 16
- σ(n) — sum of divisors
- 26,400
- φ(n) — Euler's totient
- 3,888
- Sum of prime factors
- 133
Primality
Prime factorization: 2 × 3 × 19 × 109
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√12,426 = [111; (2, 8, 2, 2, 1, 1, 2, 1, 1, 3, 1, 31, 14, 1, 4, 1, 14, 31, 1, 3, 1, 1, 2, 1, …)]
Period length 30 — the block in parentheses repeats forever.
Representations
- In words
- twelve thousand four hundred twenty-six
- Ordinal
- 12426th
- Binary
- 11000010001010
- Octal
- 30212
- Hexadecimal
- 0x308A
- Base64
- MIo=
- One's complement
- 53,109 (16-bit)
- Scientific notation
- 1.2426 × 10⁴
- As a duration
- 12,426 s = 3 hours, 27 minutes, 6 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ιβυκϛʹ
- Mayan (base 20)
- 𝋡·𝋫·𝋡·𝋦
- Chinese
- 一萬二千四百二十六
- Chinese (financial)
- 壹萬貳仟肆佰貳拾陸
Digit at this position in famous constants
- π — Pi (π)
- Digit 12,426 = 0
- e — Euler's number (e)
- Digit 12,426 = 3
- φ — Golden ratio (φ)
- Digit 12,426 = 6
- √2 — Pythagoras's (√2)
- Digit 12,426 = 9
- ln 2 — Natural log of 2
- Digit 12,426 = 9
- γ — Euler-Mascheroni (γ)
- Digit 12,426 = 8
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 12426, here are decompositions:
- 5 + 12421 = 12426
- 13 + 12413 = 12426
- 17 + 12409 = 12426
- 47 + 12379 = 12426
- 53 + 12373 = 12426
- 79 + 12347 = 12426
- 83 + 12343 = 12426
- 97 + 12329 = 12426
Showing the first eight; more decompositions exist.
UTF-8 encoding: E3 82 8A (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.48.138.
- Address
- 0.0.48.138
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.48.138
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 12,426 Hz is closest to:
- Concert pitch (A4 = 440 Hz): G9 (12543.9 Hz, -16¢)
- Scientific pitch (C4 = 256 Hz): G9 (12274.1 Hz, +21¢)
- Baroque pitch (A4 = 415 Hz): G♯9 (12534.7 Hz, -15¢)
The digit sequence 12426 first appears in π at position 122,970 of the decimal expansion (the 122,970ordinal-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°.