542,042
542,042 is a composite number, even.
542,042 (five hundred forty-two thousand forty-two) is an even 6-digit number. It is a composite number with 4 divisors, and factors as 2 × 271,021. Written other ways, in hexadecimal, 0x8455A.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 17
- Digit product
- 0
- Digital root
- 8
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 240,245
- Square (n²)
- 293,809,529,764
- Cube (n³)
- 159,257,105,132,338,088
- Divisor count
- 4
- σ(n) — sum of divisors
- 813,066
- φ(n) — Euler's totient
- 271,020
- Sum of prime factors
- 271,023
Primality
Prime factorization: 2 × 271021
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√542,042 = [736; (4, 3, 1, 11, 1, 2, 2, 47, 13, 1, 6, 1, 2, 2, 1, 13, 1, 1, 2, 6, 1, 8, 3, 1, …)]
Representations
- In words
- five hundred forty-two thousand forty-two
- Ordinal
- 542042nd
- Binary
- 10000100010101011010
- Octal
- 2042532
- Hexadecimal
- 0x8455A
- Base64
- CEVa
- One's complement
- 4,294,425,253 (32-bit)
- Scientific notation
- 5.42042 × 10⁵
- As a duration
- 542,042 s = 6 days, 6 hours, 34 minutes, 2 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒌋𒌋 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵φμβμβʹ
- Chinese
- 五十四萬二千零四十二
- Chinese (financial)
- 伍拾肆萬貳仟零肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 542042, here are decompositions:
- 19 + 542023 = 542042
- 43 + 541999 = 542042
- 211 + 541831 = 542042
- 271 + 541771 = 542042
- 283 + 541759 = 542042
- 331 + 541711 = 542042
- 349 + 541693 = 542042
- 373 + 541669 = 542042
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.8.69.90.
- Address
- 0.8.69.90
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.8.69.90
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 542,042 and was likely granted around 1895.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 542042 first appears in π at position 425,374 of the decimal expansion (the 425,374ordinal-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
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.