143,242
143,242 is a composite number, even.
143,242 (one hundred forty-three thousand two hundred forty-two) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2 × 11 × 17 × 383. Written other ways, in hexadecimal, 0x22F8A.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 16
- Digit product
- 192
- Digital root
- 7
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 242,341
- Recamán's sequence
- a(221,932) = 143,242
- Square (n²)
- 20,518,270,564
- Cube (n³)
- 2,939,078,112,128,488
- Divisor count
- 16
- σ(n) — sum of divisors
- 248,832
- φ(n) — Euler's totient
- 61,120
- Sum of prime factors
- 413
Primality
Prime factorization: 2 × 11 × 17 × 383
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√143,242 = [378; (2, 8, 1, 5, 2, 6, 1, 7, 1, 14, 1, 1, 3, 1, 1, 1, 1, 1, 2, 1, 1, 4, 1, 17, …)]
Representations
- In words
- one hundred forty-three thousand two hundred forty-two
- Ordinal
- 143242nd
- Binary
- 100010111110001010
- Octal
- 427612
- Hexadecimal
- 0x22F8A
- Base64
- Ai+K
- One's complement
- 4,294,824,053 (32-bit)
- Scientific notation
- 1.43242 × 10⁵
- As a duration
- 143,242 s = 1 day, 15 hours, 47 minutes, 22 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρμγσμβʹ
- Mayan (base 20)
- 𝋱·𝋲·𝋢·𝋢
- Chinese
- 一十四萬三千二百四十二
- Chinese (financial)
- 壹拾肆萬參仟貳佰肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 143242, here are decompositions:
- 3 + 143239 = 143242
- 83 + 143159 = 143242
- 101 + 143141 = 143242
- 131 + 143111 = 143242
- 149 + 143093 = 143242
- 179 + 143063 = 143242
- 263 + 142979 = 143242
- 269 + 142973 = 143242
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 BE 8A (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.47.138.
- Address
- 0.2.47.138
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.47.138
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 143,242 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 143242 first appears in π at position 57,218 of the decimal expansion (the 57,218ordinal-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.