139,104
139,104 is a composite number, even.
139,104 (one hundred thirty-nine thousand one hundred four) is an even 6-digit number. It is a composite number with 96 divisors, and factors as 2⁵ × 3³ × 7 × 23. Its proper divisors sum to 344,736, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x21F60.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 18
- Digit product
- 0
- Digital root
- 9
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 401,931
- Recamán's sequence
- a(490,619) = 139,104
- Square (n²)
- 19,349,922,816
- Cube (n³)
- 2,691,651,663,396,864
- Divisor count
- 96
- σ(n) — sum of divisors
- 483,840
- φ(n) — Euler's totient
- 38,016
- Sum of prime factors
- 49
Primality
Prime factorization: 2 5 × 3 3 × 7 × 23
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√139,104 = [372; (1, 28, 1, 5, 5, 20, 1, 1, 8, 1, 4, 3, 9, 82, 1, 3, 2, 2, 1, 6, 1, 2, 1, 185, …)]
Period length 48 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-nine thousand one hundred four
- Ordinal
- 139104th
- Binary
- 100001111101100000
- Octal
- 417540
- Hexadecimal
- 0x21F60
- Base64
- Ah9g
- One's complement
- 4,294,828,191 (32-bit)
- Scientific notation
- 1.39104 × 10⁵
- As a duration
- 139,104 s = 1 day, 14 hours, 38 minutes, 24 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλθρδʹ
- Mayan (base 20)
- 𝋱·𝋧·𝋯·𝋤
- Chinese
- 一十三萬九千一百零四
- Chinese (financial)
- 壹拾參萬玖仟壹佰零肆
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 139104, here are decompositions:
- 13 + 139091 = 139104
- 37 + 139067 = 139104
- 71 + 139033 = 139104
- 83 + 139021 = 139104
- 127 + 138977 = 139104
- 137 + 138967 = 139104
- 167 + 138937 = 139104
- 181 + 138923 = 139104
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A1 BD A0 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.31.96.
- Address
- 0.2.31.96
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.31.96
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 139,104 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
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.