115,720
115,720 is a composite number, even.
115,720 (one hundred fifteen thousand seven hundred twenty) is an even 6-digit number. It is a composite number with 32 divisors, and factors as 2³ × 5 × 11 × 263. Its proper divisors sum to 169,400, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1C408.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 16
- Digit product
- 0
- Digital root
- 7
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 27,511
- Recamán's sequence
- a(72,847) = 115,720
- Square (n²)
- 13,391,118,400
- Cube (n³)
- 1,549,620,221,248,000
- Divisor count
- 32
- σ(n) — sum of divisors
- 285,120
- φ(n) — Euler's totient
- 41,920
- Sum of prime factors
- 285
Primality
Prime factorization: 2 3 × 5 × 11 × 263
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√115,720 = [340; (5, 1, 2, 75, 4, 7, 2, 1, 1, 7, 1, 4, 8, 2, 2, 5, 12, 5, 2, 2, 8, 4, 1, 7, …)]
Period length 34 — the block in parentheses repeats forever.
Representations
- In words
- one hundred fifteen thousand seven hundred twenty
- Ordinal
- 115720th
- Binary
- 11100010000001000
- Octal
- 342010
- Hexadecimal
- 0x1C408
- Base64
- AcQI
- One's complement
- 4,294,851,575 (32-bit)
- Scientific notation
- 1.1572 × 10⁵
- As a duration
- 115,720 s = 1 day, 8 hours, 8 minutes, 40 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆
- Greek (Milesian)
- ͵ριεψκʹ
- Mayan (base 20)
- 𝋮·𝋩·𝋦·𝋠
- Chinese
- 一十一萬五千七百二十
- Chinese (financial)
- 壹拾壹萬伍仟柒佰貳拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 115720, here are decompositions:
- 41 + 115679 = 115720
- 83 + 115637 = 115720
- 89 + 115631 = 115720
- 107 + 115613 = 115720
- 131 + 115589 = 115720
- 149 + 115571 = 115720
- 167 + 115553 = 115720
- 173 + 115547 = 115720
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.196.8.
- Address
- 0.1.196.8
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.196.8
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 115,720 and was likely granted around 1871.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 115720 first appears in π at position 215,211 of the decimal expansion (the 215,211ordinal-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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.