118,640
118,640 is a composite number, even.
118,640 (one hundred eighteen thousand six hundred forty) is an even 6-digit number. It is a composite number with 20 divisors, and factors as 2⁴ × 5 × 1,483. Its proper divisors sum to 157,384, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1CF70.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 20
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 46,811
- Recamán's sequence
- a(242,816) = 118,640
- Square (n²)
- 14,075,449,600
- Cube (n³)
- 1,669,911,340,544,000
- Divisor count
- 20
- σ(n) — sum of divisors
- 276,024
- φ(n) — Euler's totient
- 47,424
- Sum of prime factors
- 1,496
Primality
Prime factorization: 2 4 × 5 × 1483
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√118,640 = [344; (2, 3, 1, 3, 1, 1, 8, 1, 1, 42, 1, 1, 8, 1, 1, 3, 1, 3, 2, 688)]
Period length 20 — the block in parentheses repeats forever.
Representations
- In words
- one hundred eighteen thousand six hundred forty
- Ordinal
- 118640th
- Binary
- 11100111101110000
- Octal
- 347560
- Hexadecimal
- 0x1CF70
- Base64
- Ac9w
- One's complement
- 4,294,848,655 (32-bit)
- Scientific notation
- 1.1864 × 10⁵
- As a duration
- 118,640 s = 1 day, 8 hours, 57 minutes, 20 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ριηχμʹ
- Mayan (base 20)
- 𝋮·𝋰·𝋬·𝋠
- Chinese
- 一十一萬八千六百四十
- Chinese (financial)
- 壹拾壹萬捌仟陸佰肆拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 118640, here are decompositions:
- 7 + 118633 = 118640
- 19 + 118621 = 118640
- 37 + 118603 = 118640
- 97 + 118543 = 118640
- 211 + 118429 = 118640
- 229 + 118411 = 118640
- 241 + 118399 = 118640
- 271 + 118369 = 118640
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 9C BD B0 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.207.112.
- Address
- 0.1.207.112
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.207.112
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 118,640 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 118640 first appears in π at position 354,017 of the decimal expansion (the 354,017ordinal-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
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.