142,438
142,438 is a composite number, even.
142,438 (one hundred forty-two thousand four hundred thirty-eight) is an even 6-digit number. It is a composite number with 8 divisors, and factors as 2 × 229 × 311. Written other ways, in hexadecimal, 0x22C66.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 22
- Digit product
- 768
- Digital root
- 4
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 834,241
- Recamán's sequence
- a(40,188) = 142,438
- Square (n²)
- 20,288,583,844
- Cube (n³)
- 2,889,865,305,571,672
- Divisor count
- 8
- σ(n) — sum of divisors
- 215,280
- φ(n) — Euler's totient
- 70,680
- Sum of prime factors
- 542
Primality
Prime factorization: 2 × 229 × 311
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,438 = [377; (2, 2, 3, 1, 3, 2, 1, 5, 3, 2, 1, 2, 1, 1, 8, 1, 1, 1, 2, 7, 1, 1, 1, 7, …)]
Representations
- In words
- one hundred forty-two thousand four hundred thirty-eight
- Ordinal
- 142438th
- Binary
- 100010110001100110
- Octal
- 426146
- Hexadecimal
- 0x22C66
- Base64
- Aixm
- One's complement
- 4,294,824,857 (32-bit)
- Scientific notation
- 1.42438 × 10⁵
- As a duration
- 142,438 s = 1 day, 15 hours, 33 minutes, 58 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρμβυληʹ
- Mayan (base 20)
- 𝋱·𝋰·𝋡·𝋲
- Chinese
- 一十四萬二千四百三十八
- Chinese (financial)
- 壹拾肆萬貳仟肆佰參拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142438, here are decompositions:
- 5 + 142433 = 142438
- 11 + 142427 = 142438
- 17 + 142421 = 142438
- 47 + 142391 = 142438
- 167 + 142271 = 142438
- 227 + 142211 = 142438
- 269 + 142169 = 142438
- 281 + 142157 = 142438
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 B1 A6 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.44.102.
- Address
- 0.2.44.102
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.44.102
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 142,438 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 142438 first appears in π at position 46,634 of the decimal expansion (the 46,634ordinal-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.