139,724
139,724 is a composite number, even.
139,724 (one hundred thirty-nine thousand seven hundred twenty-four) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2² × 13 × 2,687. Written other ways, in hexadecimal, 0x221CC.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 26
- Digit product
- 1,512
- Digital root
- 8
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 427,931
- Recamán's sequence
- a(489,379) = 139,724
- Square (n²)
- 19,522,796,176
- Cube (n³)
- 2,727,803,172,895,424
- Divisor count
- 12
- σ(n) — sum of divisors
- 263,424
- φ(n) — Euler's totient
- 64,464
- Sum of prime factors
- 2,704
Primality
Prime factorization: 2 2 × 13 × 2687
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√139,724 = [373; (1, 3, 1, 11, 2, 5, 7, 13, 4, 1, 2, 1, 20, 1, 1, 1, 1, 1, 6, 2, 1, 3, 7, 1, …)]
Representations
- In words
- one hundred thirty-nine thousand seven hundred twenty-four
- Ordinal
- 139724th
- Binary
- 100010000111001100
- Octal
- 420714
- Hexadecimal
- 0x221CC
- Base64
- AiHM
- One's complement
- 4,294,827,571 (32-bit)
- Scientific notation
- 1.39724 × 10⁵
- As a duration
- 139,724 s = 1 day, 14 hours, 48 minutes, 44 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλθψκδʹ
- Mayan (base 20)
- 𝋱·𝋩·𝋦·𝋤
- Chinese
- 一十三萬九千七百二十四
- Chinese (financial)
- 壹拾參萬玖仟柒佰貳拾肆
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 139724, here are decompositions:
- 3 + 139721 = 139724
- 43 + 139681 = 139724
- 61 + 139663 = 139724
- 97 + 139627 = 139724
- 127 + 139597 = 139724
- 223 + 139501 = 139724
- 241 + 139483 = 139724
- 331 + 139393 = 139724
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 87 8C (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.33.204.
- Address
- 0.2.33.204
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.33.204
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 139,724 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 139724 first appears in π at position 131,926 of the decimal expansion (the 131,926ordinal-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
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.