139,990
139,990 is a composite number, even.
139,990 (one hundred thirty-nine thousand nine hundred ninety) is an even 6-digit number. It is a composite number with 8 divisors, and factors as 2 × 5 × 13,999. Written other ways, in hexadecimal, 0x222D6.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 31
- Digit product
- 0
- Digital root
- 4
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 99,931
- Recamán's sequence
- a(488,847) = 139,990
- Square (n²)
- 19,597,200,100
- Cube (n³)
- 2,743,412,041,999,000
- Divisor count
- 8
- σ(n) — sum of divisors
- 252,000
- φ(n) — Euler's totient
- 55,992
- Sum of prime factors
- 14,006
Primality
Prime factorization: 2 × 5 × 13999
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√139,990 = [374; (6, 1, 1, 3, 2, 15, 1, 4, 1, 6, 4, 2, 1, 1, 2, 1, 34, 1, 10, 2, 1, 2, 1, 2, …)]
Representations
- In words
- one hundred thirty-nine thousand nine hundred ninety
- Ordinal
- 139990th
- Binary
- 100010001011010110
- Octal
- 421326
- Hexadecimal
- 0x222D6
- Base64
- AiLW
- One's complement
- 4,294,827,305 (32-bit)
- Scientific notation
- 1.3999 × 10⁵
- As a duration
- 139,990 s = 1 day, 14 hours, 53 minutes, 10 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρλθϡϟʹ
- Mayan (base 20)
- 𝋱·𝋩·𝋳·𝋪
- Chinese
- 一十三萬九千九百九十
- Chinese (financial)
- 壹拾參萬玖仟玖佰玖拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 139990, here are decompositions:
- 3 + 139987 = 139990
- 23 + 139967 = 139990
- 47 + 139943 = 139990
- 83 + 139907 = 139990
- 89 + 139901 = 139990
- 107 + 139883 = 139990
- 251 + 139739 = 139990
- 269 + 139721 = 139990
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 8B 96 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.34.214.
- Address
- 0.2.34.214
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.34.214
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 139,990 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 139990 first appears in π at position 793,500 of the decimal expansion (the 793,500ordinal-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.