159,980
159,980 is a composite number, even.
159,980 (one hundred fifty-nine thousand nine hundred eighty) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2² × 5 × 19 × 421. Its proper divisors sum to 194,500, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x270EC.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 32
- Digit product
- 0
- Digital root
- 5
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 89,951
- Square (n²)
- 25,593,600,400
- Cube (n³)
- 4,094,464,191,992,000
- Divisor count
- 24
- σ(n) — sum of divisors
- 354,480
- φ(n) — Euler's totient
- 60,480
- Sum of prime factors
- 449
Primality
Prime factorization: 2 2 × 5 × 19 × 421
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√159,980 = [399; (1, 38, 1, 798)]
Period length 4 — the block in parentheses repeats forever.
Representations
- In words
- one hundred fifty-nine thousand nine hundred eighty
- Ordinal
- 159980th
- Binary
- 100111000011101100
- Octal
- 470354
- Hexadecimal
- 0x270EC
- Base64
- AnDs
- One's complement
- 4,294,807,315 (32-bit)
- Scientific notation
- 1.5998 × 10⁵
- As a duration
- 159,980 s = 1 day, 20 hours, 26 minutes, 20 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρνθϡπʹ
- Mayan (base 20)
- 𝋳·𝋳·𝋳·𝋠
- Chinese
- 一十五萬九千九百八十
- Chinese (financial)
- 壹拾伍萬玖仟玖佰捌拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 159980, here are decompositions:
- 3 + 159977 = 159980
- 43 + 159937 = 159980
- 109 + 159871 = 159980
- 127 + 159853 = 159980
- 181 + 159799 = 159980
- 193 + 159787 = 159980
- 211 + 159769 = 159980
- 241 + 159739 = 159980
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A7 83 AC (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.112.236.
- Address
- 0.2.112.236
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.112.236
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 159,980 and was likely granted around 1873.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.