115,840
115,840 is a composite number, even.
115,840 (one hundred fifteen thousand eight hundred forty) is an even 6-digit number. It is a composite number with 32 divisors, and factors as 2⁷ × 5 × 181. Its proper divisors sum to 162,620, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1C480.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 19
- Digit product
- 0
- Digital root
- 1
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 48,511
- Recamán's sequence
- a(73,087) = 115,840
- Square (n²)
- 13,418,905,600
- Cube (n³)
- 1,554,446,024,704,000
- Divisor count
- 32
- σ(n) — sum of divisors
- 278,460
- φ(n) — Euler's totient
- 46,080
- Sum of prime factors
- 200
Primality
Prime factorization: 2 7 × 5 × 181
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√115,840 = [340; (2, 1, 5, 18, 1, 2, 1, 2, 1, 2, 1, 1, 1, 7, 1, 3, 2, 1, 9, 1, 16, 1, 1, 4, …)]
Representations
- In words
- one hundred fifteen thousand eight hundred forty
- Ordinal
- 115840th
- Binary
- 11100010010000000
- Octal
- 342200
- Hexadecimal
- 0x1C480
- Base64
- AcSA
- One's complement
- 4,294,851,455 (32-bit)
- Scientific notation
- 1.1584 × 10⁵
- As a duration
- 115,840 s = 1 day, 8 hours, 10 minutes, 40 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹 𒌋 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ριεωμʹ
- Mayan (base 20)
- 𝋮·𝋩·𝋬·𝋠
- Chinese
- 一十一萬五千八百四十
- Chinese (financial)
- 壹拾壹萬伍仟捌佰肆拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 115840, here are decompositions:
- 3 + 115837 = 115840
- 17 + 115823 = 115840
- 29 + 115811 = 115840
- 47 + 115793 = 115840
- 59 + 115781 = 115840
- 71 + 115769 = 115840
- 83 + 115757 = 115840
- 89 + 115751 = 115840
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.196.128.
- Address
- 0.1.196.128
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.196.128
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 115,840 and was likely granted around 1871.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.