143,642
143,642 is a composite number, even.
143,642 (one hundred forty-three thousand six hundred forty-two) is an even 6-digit number. It is a composite number with 4 divisors, and factors as 2 × 71,821. Written other ways, in hexadecimal, 0x2311A.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 20
- Digit product
- 576
- Digital root
- 2
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 246,341
- Recamán's sequence
- a(221,132) = 143,642
- Square (n²)
- 20,633,024,164
- Cube (n³)
- 2,963,768,856,965,288
- Divisor count
- 4
- σ(n) — sum of divisors
- 215,466
- φ(n) — Euler's totient
- 71,820
- Sum of prime factors
- 71,823
Primality
Prime factorization: 2 × 71821
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√143,642 = [379; (758)]
Period length 1 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-three thousand six hundred forty-two
- Ordinal
- 143642nd
- Binary
- 100011000100011010
- Octal
- 430432
- Hexadecimal
- 0x2311A
- Base64
- AjEa
- One's complement
- 4,294,823,653 (32-bit)
- Scientific notation
- 1.43642 × 10⁵
- As a duration
- 143,642 s = 1 day, 15 hours, 54 minutes, 2 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρμγχμβʹ
- Mayan (base 20)
- 𝋱·𝋳·𝋢·𝋢
- Chinese
- 一十四萬三千六百四十二
- Chinese (financial)
- 壹拾肆萬參仟陸佰肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 143642, here are decompositions:
- 13 + 143629 = 143642
- 73 + 143569 = 143642
- 139 + 143503 = 143642
- 181 + 143461 = 143642
- 199 + 143443 = 143642
- 223 + 143419 = 143642
- 229 + 143413 = 143642
- 241 + 143401 = 143642
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A3 84 9A (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.49.26.
- Address
- 0.2.49.26
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.49.26
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 143,642 and was likely granted around 1873.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 143642 first appears in π at position 809,228 of the decimal expansion (the 809,228ordinal-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.