139,090
139,090 is a composite number, even.
139,090 (one hundred thirty-nine thousand ninety) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2 × 5 × 7 × 1,987. Its proper divisors sum to 147,182, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x21F52.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 22
- Digit product
- 0
- Digital root
- 4
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 90,931
- Recamán's sequence
- a(490,647) = 139,090
- Square (n²)
- 19,346,028,100
- Cube (n³)
- 2,690,839,048,429,000
- Divisor count
- 16
- σ(n) — sum of divisors
- 286,272
- φ(n) — Euler's totient
- 47,664
- Sum of prime factors
- 2,001
Primality
Prime factorization: 2 × 5 × 7 × 1987
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√139,090 = [372; (1, 18, 7, 1, 7, 1, 1, 49, 5, 11, 3, 1, 1, 1, 1, 1, 4, 82, 1, 1, 1, 18, 2, 5, …)]
Representations
- In words
- one hundred thirty-nine thousand ninety
- Ordinal
- 139090th
- Binary
- 100001111101010010
- Octal
- 417522
- Hexadecimal
- 0x21F52
- Base64
- Ah9S
- One's complement
- 4,294,828,205 (32-bit)
- Scientific notation
- 1.3909 × 10⁵
- As a duration
- 139,090 s = 1 day, 14 hours, 38 minutes, 10 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρλθϟʹ
- Mayan (base 20)
- 𝋱·𝋧·𝋮·𝋪
- Chinese
- 一十三萬九千零九十
- Chinese (financial)
- 壹拾參萬玖仟零玖拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 139090, here are decompositions:
- 11 + 139079 = 139090
- 23 + 139067 = 139090
- 113 + 138977 = 139090
- 131 + 138959 = 139090
- 167 + 138923 = 139090
- 173 + 138917 = 139090
- 191 + 138899 = 139090
- 197 + 138893 = 139090
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A1 BD 92 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.31.82.
- Address
- 0.2.31.82
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.31.82
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 139,090 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 139090 first appears in π at position 390,367 of the decimal expansion (the 390,367ordinal-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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.