139,272
139,272 is a composite number, even.
139,272 (one hundred thirty-nine thousand two hundred seventy-two) is an even 6-digit number. It is a composite number with 32 divisors, and factors as 2³ × 3 × 7 × 829. Its proper divisors sum to 259,128, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x22008.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 24
- Digit product
- 756
- Digital root
- 6
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 272,931
- Recamán's sequence
- a(490,283) = 139,272
- Square (n²)
- 19,396,689,984
- Cube (n³)
- 2,701,415,807,451,648
- Divisor count
- 32
- σ(n) — sum of divisors
- 398,400
- φ(n) — Euler's totient
- 39,744
- Sum of prime factors
- 845
Primality
Prime factorization: 2 3 × 3 × 7 × 829
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√139,272 = [373; (5, 4, 1, 1, 2, 2, 5, 4, 4, 3, 4, 1, 10, 6, 13, 6, 10, 1, 4, 3, 4, 4, 5, 2, …)]
Period length 30 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-nine thousand two hundred seventy-two
- Ordinal
- 139272nd
- Binary
- 100010000000001000
- Octal
- 420010
- Hexadecimal
- 0x22008
- Base64
- AiAI
- One's complement
- 4,294,828,023 (32-bit)
- Scientific notation
- 1.39272 × 10⁵
- As a duration
- 139,272 s = 1 day, 14 hours, 41 minutes, 12 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹 𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρλθσοβʹ
- Mayan (base 20)
- 𝋱·𝋨·𝋣·𝋬
- Chinese
- 一十三萬九千二百七十二
- Chinese (financial)
- 壹拾參萬玖仟貳佰柒拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 139272, here are decompositions:
- 5 + 139267 = 139272
- 31 + 139241 = 139272
- 71 + 139201 = 139272
- 73 + 139199 = 139272
- 103 + 139169 = 139272
- 139 + 139133 = 139272
- 149 + 139123 = 139272
- 151 + 139121 = 139272
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 80 88 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.32.8.
- Address
- 0.2.32.8
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.32.8
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 139,272 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 139272 first appears in π at position 177,361 of the decimal expansion (the 177,361ordinal-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
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.