139,018
139,018 is a composite number, even.
139,018 (one hundred thirty-nine thousand eighteen) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2 × 11 × 71 × 89. Written other ways, in hexadecimal, 0x21F0A.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 22
- Digit product
- 0
- Digital root
- 4
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 810,931
- Recamán's sequence
- a(490,791) = 139,018
- Square (n²)
- 19,326,004,324
- Cube (n³)
- 2,686,662,469,113,832
- Divisor count
- 16
- σ(n) — sum of divisors
- 233,280
- φ(n) — Euler's totient
- 61,600
- Sum of prime factors
- 173
Primality
Prime factorization: 2 × 11 × 71 × 89
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√139,018 = [372; (1, 5, 1, 2, 1, 1, 3, 2, 3, 3, 18, 1, 4, 2, 5, 9, 43, 1, 3, 10, 3, 1, 43, 9, …)]
Period length 40 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-nine thousand eighteen
- Ordinal
- 139018th
- Binary
- 100001111100001010
- Octal
- 417412
- Hexadecimal
- 0x21F0A
- Base64
- Ah8K
- One's complement
- 4,294,828,277 (32-bit)
- Scientific notation
- 1.39018 × 10⁵
- As a duration
- 139,018 s = 1 day, 14 hours, 36 minutes, 58 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλθιηʹ
- Mayan (base 20)
- 𝋱·𝋧·𝋪·𝋲
- Chinese
- 一十三萬九千零一十八
- Chinese (financial)
- 壹拾參萬玖仟零壹拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 139018, here are decompositions:
- 41 + 138977 = 139018
- 59 + 138959 = 139018
- 101 + 138917 = 139018
- 149 + 138869 = 139018
- 197 + 138821 = 139018
- 389 + 138629 = 139018
- 401 + 138617 = 139018
- 419 + 138599 = 139018
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A1 BC 8A (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.31.10.
- Address
- 0.2.31.10
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.31.10
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 139,018 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 139018 first appears in π at position 789,197 of the decimal expansion (the 789,197ordinal-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.