542,742
542,742 is a composite number, even.
542,742 (five hundred forty-two thousand seven hundred forty-two) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2 × 3 × 17² × 313. Its proper divisors sum to 614,034, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x84816.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 24
- Digit product
- 2,240
- Digital root
- 6
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 247,245
- Square (n²)
- 294,568,878,564
- Cube (n³)
- 159,874,902,289,582,488
- Divisor count
- 24
- σ(n) — sum of divisors
- 1,156,776
- φ(n) — Euler's totient
- 169,728
- Sum of prime factors
- 352
Primality
Prime factorization: 2 × 3 × 17 2 × 313
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√542,742 = [736; (1, 2, 2, 4, 1, 1, 1, 2, 1, 4, 2, 1, 2, 6, 2, 2, 1, 1, 4, 1, 1, 4, 1, 1, …)]
Period length 44 — the block in parentheses repeats forever.
Representations
- In words
- five hundred forty-two thousand seven hundred forty-two
- Ordinal
- 542742nd
- Binary
- 10000100100000010110
- Octal
- 2044026
- Hexadecimal
- 0x84816
- Base64
- CEgW
- One's complement
- 4,294,424,553 (32-bit)
- Scientific notation
- 5.42742 × 10⁵
- As a duration
- 542,742 s = 6 days, 6 hours, 45 minutes, 42 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒌋𒌋 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵φμβψμβʹ
- Chinese
- 五十四萬二千七百四十二
- Chinese (financial)
- 伍拾肆萬貳仟柒佰肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 542742, here are decompositions:
- 19 + 542723 = 542742
- 23 + 542719 = 542742
- 29 + 542713 = 542742
- 59 + 542683 = 542742
- 139 + 542603 = 542742
- 163 + 542579 = 542742
- 191 + 542551 = 542742
- 223 + 542519 = 542742
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.8.72.22.
- Address
- 0.8.72.22
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.8.72.22
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 542,742 and was likely granted around 1895.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.