139,139
139,139 is a composite number, odd.
139,139 (one hundred thirty-nine thousand one hundred thirty-nine) is an odd 6-digit number. It is a composite number with 16 divisors, and factors as 7 × 11 × 13 × 139. Written other ways, in hexadecimal, 0x21F83.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 26
- Digit product
- 729
- Digital root
- 8
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 931,931
- Recamán's sequence
- a(490,549) = 139,139
- Square (n²)
- 19,359,661,321
- Cube (n³)
- 2,693,683,916,542,619
- Divisor count
- 16
- σ(n) — sum of divisors
- 188,160
- φ(n) — Euler's totient
- 99,360
- Sum of prime factors
- 170
Primality
Prime factorization: 7 × 11 × 13 × 139
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√139,139 = [373; (74, 1, 1, 1, 1, 29, 4, 6, 2, 1, 4, 1, 2, 6, 4, 29, 1, 1, 1, 1, 74, 746)]
Period length 22 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-nine thousand one hundred thirty-nine
- Ordinal
- 139139th
- Binary
- 100001111110000011
- Octal
- 417603
- Hexadecimal
- 0x21F83
- Base64
- Ah+D
- One's complement
- 4,294,828,156 (32-bit)
- Scientific notation
- 1.39139 × 10⁵
- As a duration
- 139,139 s = 1 day, 14 hours, 38 minutes, 59 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλθρλθʹ
- Mayan (base 20)
- 𝋱·𝋧·𝋰·𝋳
- Chinese
- 一十三萬九千一百三十九
- Chinese (financial)
- 壹拾參萬玖仟壹佰參拾玖
Also seen as
UTF-8 encoding: F0 A1 BE 83 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.31.131.
- Address
- 0.2.31.131
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.31.131
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 139,139 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 139139 first appears in π at position 609,361 of the decimal expansion (the 609,361ordinal-suffix:st 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.