162,840
162,840 is a composite number, even.
162,840 (one hundred sixty-two thousand eight hundred forty) is an even 6-digit number. It is a composite number with 64 divisors, and factors as 2³ × 3 × 5 × 23 × 59. Its proper divisors sum to 355,560, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x27C18.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 21
- Digit product
- 0
- Digital root
- 3
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 48,261
- Recamán's sequence
- a(50,860) = 162,840
- Square (n²)
- 26,516,865,600
- Cube (n³)
- 4,318,006,394,304,000
- Divisor count
- 64
- σ(n) — sum of divisors
- 518,400
- φ(n) — Euler's totient
- 40,832
- Sum of prime factors
- 96
Primality
Prime factorization: 2 3 × 3 × 5 × 23 × 59
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√162,840 = [403; (1, 1, 6, 1, 3, 2, 1, 3, 1, 2, 3, 1, 6, 1, 1, 806)]
Period length 16 — the block in parentheses repeats forever.
Representations
- In words
- one hundred sixty-two thousand eight hundred forty
- Ordinal
- 162840th
- Binary
- 100111110000011000
- Octal
- 476030
- Hexadecimal
- 0x27C18
- Base64
- AnwY
- One's complement
- 4,294,804,455 (32-bit)
- Scientific notation
- 1.6284 × 10⁵
- As a duration
- 162,840 s = 1 day, 21 hours, 14 minutes
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹 ·
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρξβωμʹ
- Chinese
- 一十六萬二千八百四十
- Chinese (financial)
- 壹拾陸萬貳仟捌佰肆拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 162840, here are decompositions:
- 11 + 162829 = 162840
- 17 + 162823 = 162840
- 19 + 162821 = 162840
- 53 + 162787 = 162840
- 61 + 162779 = 162840
- 89 + 162751 = 162840
- 101 + 162739 = 162840
- 109 + 162731 = 162840
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A7 B0 98 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.124.24.
- Address
- 0.2.124.24
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.124.24
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 162,840 and was likely granted around 1874.
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°.