140,438
140,438 is a composite number, even.
140,438 (one hundred forty thousand four hundred thirty-eight) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2 × 23 × 43 × 71. Written other ways, in hexadecimal, 0x22496.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 20
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 834,041
- Recamán's sequence
- a(487,951) = 140,438
- Square (n²)
- 19,722,831,844
- Cube (n³)
- 2,769,835,058,507,672
- Divisor count
- 16
- σ(n) — sum of divisors
- 228,096
- φ(n) — Euler's totient
- 64,680
- Sum of prime factors
- 139
Primality
Prime factorization: 2 × 23 × 43 × 71
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√140,438 = [374; (1, 3, 106, 1, 4, 1, 1, 1, 1, 14, 1, 2, 4, 1, 2, 4, 1, 1, 21, 2, 33, 1, 1, 2, …)]
Representations
- In words
- one hundred forty thousand four hundred thirty-eight
- Ordinal
- 140438th
- Binary
- 100010010010010110
- Octal
- 422226
- Hexadecimal
- 0x22496
- Base64
- AiSW
- One's complement
- 4,294,826,857 (32-bit)
- Scientific notation
- 1.40438 × 10⁵
- As a duration
- 140,438 s = 1 day, 15 hours, 38 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 · 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρμυληʹ
- Mayan (base 20)
- 𝋱·𝋫·𝋡·𝋲
- Chinese
- 一十四萬零四百三十八
- Chinese (financial)
- 壹拾肆萬零肆佰參拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 140438, here are decompositions:
- 19 + 140419 = 140438
- 31 + 140407 = 140438
- 37 + 140401 = 140438
- 157 + 140281 = 140438
- 211 + 140227 = 140438
- 241 + 140197 = 140438
- 271 + 140167 = 140438
- 367 + 140071 = 140438
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 92 96 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.36.150.
- Address
- 0.2.36.150
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.36.150
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 140,438 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 140438 first appears in π at position 399,109 of the decimal expansion (the 399,109ordinal-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
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.