162,240
162,240 is a composite number, even.
162,240 (one hundred sixty-two thousand two hundred forty) is an even 6-digit number. It is a composite number with 84 divisors, and factors as 2⁶ × 3 × 5 × 13². Its proper divisors sum to 395,544, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x279C0.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 15
- Digit product
- 0
- Digital root
- 6
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 42,261
- Recamán's sequence
- a(474,807) = 162,240
- Square (n²)
- 26,321,817,600
- Cube (n³)
- 4,270,451,687,424,000
- Divisor count
- 84
- σ(n) — sum of divisors
- 557,784
- φ(n) — Euler's totient
- 39,936
- Sum of prime factors
- 46
Primality
Prime factorization: 2 6 × 3 × 5 × 13 2
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√162,240 = [402; (1, 3, 1, 3, 3, 4, 2, 5, 1, 3, 1, 11, 1, 3, 1, 5, 2, 4, 3, 3, 1, 3, 1, 804)]
Period length 24 — the block in parentheses repeats forever.
Representations
- In words
- one hundred sixty-two thousand two hundred forty
- Ordinal
- 162240th
- Binary
- 100111100111000000
- Octal
- 474700
- Hexadecimal
- 0x279C0
- Base64
- AnnA
- One's complement
- 4,294,805,055 (32-bit)
- Scientific notation
- 1.6224 × 10⁵
- As a duration
- 162,240 s = 1 day, 21 hours, 4 minutes
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹 ·
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρξβσμʹ
- Chinese
- 一十六萬二千二百四十
- Chinese (financial)
- 壹拾陸萬貳仟貳佰肆拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 162240, here are decompositions:
- 11 + 162229 = 162240
- 19 + 162221 = 162240
- 31 + 162209 = 162240
- 97 + 162143 = 162240
- 131 + 162109 = 162240
- 149 + 162091 = 162240
- 181 + 162059 = 162240
- 223 + 162017 = 162240
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A7 A7 80 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.121.192.
- Address
- 0.2.121.192
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.121.192
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 162,240 and was likely granted around 1874.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 162240 first appears in π at position 368,975 of the decimal expansion (the 368,975ordinal-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°.