130,388
130,388 is a composite number, even.
130,388 (one hundred thirty thousand three hundred eighty-eight) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2² × 37 × 881. Written other ways, in hexadecimal, 0x1FD54.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 23
- Digit product
- 0
- Digital root
- 5
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 883,031
- Square (n²)
- 17,001,030,544
- Cube (n³)
- 2,216,730,370,571,072
- Divisor count
- 12
- σ(n) — sum of divisors
- 234,612
- φ(n) — Euler's totient
- 63,360
- Sum of prime factors
- 922
Primality
Prime factorization: 2 2 × 37 × 881
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√130,388 = [361; (10, 1, 3, 2, 44, 1, 2, 3, 1, 5, 5, 44, 1, 16, 1, 1, 1, 3, 180, 3, 1, 1, 1, 16, …)]
Period length 38 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty thousand three hundred eighty-eight
- Ordinal
- 130388th
- Binary
- 11111110101010100
- Octal
- 376524
- Hexadecimal
- 0x1FD54
- Base64
- Af1U
- One's complement
- 4,294,836,907 (32-bit)
- Scientific notation
- 1.30388 × 10⁵
- As a duration
- 130,388 s = 1 day, 12 hours, 13 minutes, 8 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλτπηʹ
- Mayan (base 20)
- 𝋰·𝋥·𝋳·𝋨
- Chinese
- 一十三萬零三百八十八
- Chinese (financial)
- 壹拾參萬零參佰捌拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 130388, here are decompositions:
- 19 + 130369 = 130388
- 109 + 130279 = 130388
- 127 + 130261 = 130388
- 241 + 130147 = 130388
- 331 + 130057 = 130388
- 337 + 130051 = 130388
- 367 + 130021 = 130388
- 421 + 129967 = 130388
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.253.84.
- Address
- 0.1.253.84
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.253.84
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 130,388 and was likely granted around 1872.
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.