139,790
139,790 is a composite number, even.
139,790 (one hundred thirty-nine thousand seven hundred ninety) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2 × 5 × 7 × 1,997. Its proper divisors sum to 147,922, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x2220E.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 29
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 97,931
- Recamán's sequence
- a(489,247) = 139,790
- Square (n²)
- 19,541,244,100
- Cube (n³)
- 2,731,670,512,739,000
- Divisor count
- 16
- σ(n) — sum of divisors
- 287,712
- φ(n) — Euler's totient
- 47,904
- Sum of prime factors
- 2,011
Primality
Prime factorization: 2 × 5 × 7 × 1997
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√139,790 = [373; (1, 7, 1, 2, 3, 2, 2, 3, 11, 1, 27, 1, 5, 3, 7, 11, 2, 1, 2, 1, 1, 2, 3, 4, …)]
Representations
- In words
- one hundred thirty-nine thousand seven hundred ninety
- Ordinal
- 139790th
- Binary
- 100010001000001110
- Octal
- 421016
- Hexadecimal
- 0x2220E
- Base64
- AiIO
- One's complement
- 4,294,827,505 (32-bit)
- Scientific notation
- 1.3979 × 10⁵
- As a duration
- 139,790 s = 1 day, 14 hours, 49 minutes, 50 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρλθψϟʹ
- Mayan (base 20)
- 𝋱·𝋩·𝋩·𝋪
- Chinese
- 一十三萬九千七百九十
- Chinese (financial)
- 壹拾參萬玖仟柒佰玖拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 139790, here are decompositions:
- 3 + 139787 = 139790
- 31 + 139759 = 139790
- 37 + 139753 = 139790
- 43 + 139747 = 139790
- 61 + 139729 = 139790
- 109 + 139681 = 139790
- 127 + 139663 = 139790
- 163 + 139627 = 139790
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 88 8E (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.34.14.
- Address
- 0.2.34.14
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.34.14
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 139,790 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 139790 first appears in π at position 317,524 of the decimal expansion (the 317,524ordinal-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.