542,740
542,740 is a composite number, even.
542,740 (five hundred forty-two thousand seven hundred forty) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2² × 5 × 11 × 2,467. Its proper divisors sum to 701,132, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x84814.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 22
- Digit product
- 0
- Digital root
- 4
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 47,245
- Square (n²)
- 294,566,707,600
- Cube (n³)
- 159,873,134,882,824,000
- Divisor count
- 24
- σ(n) — sum of divisors
- 1,243,872
- φ(n) — Euler's totient
- 197,280
- Sum of prime factors
- 2,487
Primality
Prime factorization: 2 2 × 5 × 11 × 2467
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√542,740 = [736; (1, 2, 2, 3, 2, 1, 3, 1, 1, 1, 3, 7, 1, 6, 2, 4, 1, 1, 1, 2, 1, 1, 3, 1, …)]
Representations
- In words
- five hundred forty-two thousand seven hundred forty
- Ordinal
- 542740th
- Binary
- 10000100100000010100
- Octal
- 2044024
- Hexadecimal
- 0x84814
- Base64
- CEgU
- One's complement
- 4,294,424,555 (32-bit)
- Scientific notation
- 5.4274 × 10⁵
- As a duration
- 542,740 s = 6 days, 6 hours, 45 minutes, 40 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒌋𒌋 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵φμβψμʹ
- Chinese
- 五十四萬二千七百四十
- Chinese (financial)
- 伍拾肆萬貳仟柒佰肆拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 542740, here are decompositions:
- 17 + 542723 = 542740
- 47 + 542693 = 542740
- 53 + 542687 = 542740
- 137 + 542603 = 542740
- 173 + 542567 = 542740
- 251 + 542489 = 542740
- 257 + 542483 = 542740
- 293 + 542447 = 542740
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.8.72.20.
- Address
- 0.8.72.20
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.8.72.20
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 542,740 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°.