139,712
139,712 is a composite number, even.
139,712 (one hundred thirty-nine thousand seven hundred twelve) is an even 6-digit number. It is a composite number with 28 divisors, and factors as 2⁶ × 37 × 59. Its proper divisors sum to 149,848, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x221C0.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 23
- Digit product
- 378
- Digital root
- 5
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 217,931
- Recamán's sequence
- a(489,403) = 139,712
- Square (n²)
- 19,519,442,944
- Cube (n³)
- 2,727,100,412,592,128
- Divisor count
- 28
- σ(n) — sum of divisors
- 289,560
- φ(n) — Euler's totient
- 66,816
- Sum of prime factors
- 108
Primality
Prime factorization: 2 6 × 37 × 59
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√139,712 = [373; (1, 3, 1, 1, 3, 1, 2, 4, 15, 1, 2, 11, 2, 1, 15, 4, 2, 1, 3, 1, 1, 3, 1, 746)]
Period length 24 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-nine thousand seven hundred twelve
- Ordinal
- 139712th
- Binary
- 100010000111000000
- Octal
- 420700
- Hexadecimal
- 0x221C0
- Base64
- AiHA
- One's complement
- 4,294,827,583 (32-bit)
- Scientific notation
- 1.39712 × 10⁵
- As a duration
- 139,712 s = 1 day, 14 hours, 48 minutes, 32 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρλθψιβʹ
- Mayan (base 20)
- 𝋱·𝋩·𝋥·𝋬
- Chinese
- 一十三萬九千七百一十二
- Chinese (financial)
- 壹拾參萬玖仟柒佰壹拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 139712, here are decompositions:
- 3 + 139709 = 139712
- 31 + 139681 = 139712
- 103 + 139609 = 139712
- 211 + 139501 = 139712
- 229 + 139483 = 139712
- 283 + 139429 = 139712
- 373 + 139339 = 139712
- 379 + 139333 = 139712
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 87 80 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.33.192.
- Address
- 0.2.33.192
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.33.192
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 139,712 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.