130,400
130,400 is a composite number, even.
130,400 (one hundred thirty thousand four hundred) is an even 6-digit number. It is a composite number with 36 divisors, and factors as 2⁵ × 5² × 163. Its proper divisors sum to 189,892, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1FD60.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 8
- Digit product
- 0
- Digital root
- 8
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 4,031
- Square (n²)
- 17,004,160,000
- Cube (n³)
- 2,217,342,464,000,000
- Divisor count
- 36
- σ(n) — sum of divisors
- 320,292
- φ(n) — Euler's totient
- 51,840
- Sum of prime factors
- 183
Primality
Prime factorization: 2 5 × 5 2 × 163
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√130,400 = [361; (9, 7, 9, 722)]
Period length 4 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty thousand four hundred
- Ordinal
- 130400th
- Binary
- 11111110101100000
- Octal
- 376540
- Hexadecimal
- 0x1FD60
- Base64
- Af1g
- One's complement
- 4,294,836,895 (32-bit)
- Scientific notation
- 1.304 × 10⁵
- As a duration
- 130,400 s = 1 day, 12 hours, 13 minutes, 20 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓍢𓍢𓍢𓍢
- Greek (Milesian)
- ͵ρλυʹ
- Mayan (base 20)
- 𝋰·𝋦·𝋠·𝋠
- Chinese
- 一十三萬零四百
- Chinese (financial)
- 壹拾參萬零肆佰
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 130400, here are decompositions:
- 31 + 130369 = 130400
- 37 + 130363 = 130400
- 97 + 130303 = 130400
- 139 + 130261 = 130400
- 199 + 130201 = 130400
- 229 + 130171 = 130400
- 313 + 130087 = 130400
- 331 + 130069 = 130400
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.253.96.
- Address
- 0.1.253.96
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.253.96
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 130,400 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.