139,122
139,122 is a composite number, even.
139,122 (one hundred thirty-nine thousand one hundred twenty-two) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2 × 3² × 59 × 131. Its proper divisors sum to 169,758, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x21F72.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 18
- Digit product
- 108
- Digital root
- 9
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 221,931
- Recamán's sequence
- a(490,583) = 139,122
- Square (n²)
- 19,354,930,884
- Cube (n³)
- 2,692,696,694,443,848
- Divisor count
- 24
- σ(n) — sum of divisors
- 308,880
- φ(n) — Euler's totient
- 45,240
- Sum of prime factors
- 198
Primality
Prime factorization: 2 × 3 2 × 59 × 131
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√139,122 = [372; (1, 105, 1, 1, 3, 14, 1, 15, 3, 1, 1, 5, 1, 1, 2, 7, 1, 1, 5, 2, 1, 1, 2, 1, …)]
Period length 50 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-nine thousand one hundred twenty-two
- Ordinal
- 139122nd
- Binary
- 100001111101110010
- Octal
- 417562
- Hexadecimal
- 0x21F72
- Base64
- Ah9y
- One's complement
- 4,294,828,173 (32-bit)
- Scientific notation
- 1.39122 × 10⁵
- As a duration
- 139,122 s = 1 day, 14 hours, 38 minutes, 42 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρλθρκβʹ
- Mayan (base 20)
- 𝋱·𝋧·𝋰·𝋢
- Chinese
- 一十三萬九千一百二十二
- Chinese (financial)
- 壹拾參萬玖仟壹佰貳拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 139122, here are decompositions:
- 13 + 139109 = 139122
- 31 + 139091 = 139122
- 43 + 139079 = 139122
- 89 + 139033 = 139122
- 101 + 139021 = 139122
- 163 + 138959 = 139122
- 199 + 138923 = 139122
- 223 + 138899 = 139122
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A1 BD B2 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.31.114.
- Address
- 0.2.31.114
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.31.114
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 139,122 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 139122 first appears in π at position 873,326 of the decimal expansion (the 873,326ordinal-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
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.