139,972
139,972 is a composite number, even.
139,972 (one hundred thirty-nine thousand nine hundred seventy-two) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2² × 7 × 4,999. Its proper divisors sum to 140,028, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x222C4.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 31
- Digit product
- 3,402
- Digital root
- 4
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 279,931
- Recamán's sequence
- a(488,883) = 139,972
- Square (n²)
- 19,592,160,784
- Cube (n³)
- 2,742,353,929,258,048
- Divisor count
- 12
- σ(n) — sum of divisors
- 280,000
- φ(n) — Euler's totient
- 59,976
- Sum of prime factors
- 5,010
Primality
Prime factorization: 2 2 × 7 × 4999
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√139,972 = [374; (7, 1, 3, 1, 4, 1, 11, 20, 7, 4, 1, 1, 1, 8, 1, 1, 2, 6, 2, 7, 1, 1, 2, 1, …)]
Representations
- In words
- one hundred thirty-nine thousand nine hundred seventy-two
- Ordinal
- 139972nd
- Binary
- 100010001011000100
- Octal
- 421304
- Hexadecimal
- 0x222C4
- Base64
- AiLE
- One's complement
- 4,294,827,323 (32-bit)
- Scientific notation
- 1.39972 × 10⁵
- As a duration
- 139,972 s = 1 day, 14 hours, 52 minutes, 52 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρλθϡοβʹ
- Mayan (base 20)
- 𝋱·𝋩·𝋲·𝋬
- Chinese
- 一十三萬九千九百七十二
- Chinese (financial)
- 壹拾參萬玖仟玖佰柒拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 139972, here are decompositions:
- 3 + 139969 = 139972
- 5 + 139967 = 139972
- 29 + 139943 = 139972
- 71 + 139901 = 139972
- 89 + 139883 = 139972
- 101 + 139871 = 139972
- 233 + 139739 = 139972
- 251 + 139721 = 139972
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 8B 84 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.34.196.
- Address
- 0.2.34.196
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.34.196
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 139,972 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 139972 first appears in π at position 806,151 of the decimal expansion (the 806,151ordinal-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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.