139,424
139,424 is a composite number, even.
139,424 (one hundred thirty-nine thousand four hundred twenty-four) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2⁵ × 4,357. Written other ways, in hexadecimal, 0x220A0.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 23
- Digit product
- 864
- Digital root
- 5
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 424,931
- Recamán's sequence
- a(489,979) = 139,424
- Square (n²)
- 19,439,051,776
- Cube (n³)
- 2,710,270,354,817,024
- Divisor count
- 12
- σ(n) — sum of divisors
- 274,554
- φ(n) — Euler's totient
- 69,696
- Sum of prime factors
- 4,367
Primality
Prime factorization: 2 5 × 4357
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√139,424 = [373; (2, 1, 1, 7, 1, 3, 1, 3, 1, 1, 1, 1, 1, 10, 1, 6, 1, 1, 4, 7, 2, 11, 46, 1, …)]
Representations
- In words
- one hundred thirty-nine thousand four hundred twenty-four
- Ordinal
- 139424th
- Binary
- 100010000010100000
- Octal
- 420240
- Hexadecimal
- 0x220A0
- Base64
- AiCg
- One's complement
- 4,294,827,871 (32-bit)
- Scientific notation
- 1.39424 × 10⁵
- As a duration
- 139,424 s = 1 day, 14 hours, 43 minutes, 44 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλθυκδʹ
- Mayan (base 20)
- 𝋱·𝋨·𝋫·𝋤
- Chinese
- 一十三萬九千四百二十四
- Chinese (financial)
- 壹拾參萬玖仟肆佰貳拾肆
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 139424, here are decompositions:
- 31 + 139393 = 139424
- 37 + 139387 = 139424
- 127 + 139297 = 139424
- 151 + 139273 = 139424
- 157 + 139267 = 139424
- 223 + 139201 = 139424
- 457 + 138967 = 139424
- 487 + 138937 = 139424
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 82 A0 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.32.160.
- Address
- 0.2.32.160
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.32.160
Unspecified address (0.0.0.0/8) — "this network" placeholder.
This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 139,424 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.