128,013
128,013 is a composite number, odd.
128,013 (one hundred twenty-eight thousand thirteen) is an odd 6-digit number. It is a composite number with 8 divisors, and factors as 3 × 71 × 601. Written other ways, in hexadecimal, 0x1F40D.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 15
- Digit product
- 0
- Digital root
- 6
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 310,821
- Square (n²)
- 16,387,328,169
- Cube (n³)
- 2,097,791,040,898,197
- Divisor count
- 8
- σ(n) — sum of divisors
- 173,376
- φ(n) — Euler's totient
- 84,000
- Sum of prime factors
- 675
Primality
Prime factorization: 3 × 71 × 601
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√128,013 = [357; (1, 3, 1, 2, 1, 5, 1, 2, 2, 4, 7, 1, 1, 4, 3, 3, 3, 1, 1, 59, 15, 4, 1, 4, …)]
Representations
- In words
- one hundred twenty-eight thousand thirteen
- Ordinal
- 128013th
- Binary
- 11111010000001101
- Octal
- 372015
- Hexadecimal
- 0x1F40D
- Base64
- AfQN
- One's complement
- 4,294,839,282 (32-bit)
- Scientific notation
- 1.28013 × 10⁵
- As a duration
- 128,013 s = 1 day, 11 hours, 33 minutes, 33 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓎆𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρκηιγʹ
- Mayan (base 20)
- 𝋰·𝋠·𝋠·𝋭
- Chinese
- 一十二萬八千零一十三
- Chinese (financial)
- 壹拾貳萬捌仟零壹拾參
Also seen as
UTF-8 encoding: F0 9F 90 8D (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.244.13.
- Address
- 0.1.244.13
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.244.13
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 128,013 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
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.