128,010
128,010 is a composite number, even.
128,010 (one hundred twenty-eight thousand ten) is an even 6-digit number. It is a composite number with 32 divisors, and factors as 2 × 3 × 5 × 17 × 251. Its proper divisors sum to 198,582, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1F40A.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 12
- Digit product
- 0
- Digital root
- 3
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 10,821
- Square (n²)
- 16,386,560,100
- Cube (n³)
- 2,097,643,558,401,000
- Divisor count
- 32
- σ(n) — sum of divisors
- 326,592
- φ(n) — Euler's totient
- 32,000
- Sum of prime factors
- 278
Primality
Prime factorization: 2 × 3 × 5 × 17 × 251
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√128,010 = [357; (1, 3, 1, 1, 1, 5, 3, 1, 2, 4, 3, 1, 1, 14, 27, 2, 4, 1, 5, 1, 1, 1, 2, 3, …)]
Period length 56 — the block in parentheses repeats forever.
Representations
- In words
- one hundred twenty-eight thousand ten
- Ordinal
- 128010th
- Binary
- 11111010000001010
- Octal
- 372012
- Hexadecimal
- 0x1F40A
- Base64
- AfQK
- One's complement
- 4,294,839,285 (32-bit)
- Scientific notation
- 1.2801 × 10⁵
- As a duration
- 128,010 s = 1 day, 11 hours, 33 minutes, 30 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓎆
- Greek (Milesian)
- ͵ρκηιʹ
- Mayan (base 20)
- 𝋰·𝋠·𝋠·𝋪
- Chinese
- 一十二萬八千零一十
- Chinese (financial)
- 壹拾貳萬捌仟零壹拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 128010, here are decompositions:
- 13 + 127997 = 128010
- 31 + 127979 = 128010
- 37 + 127973 = 128010
- 59 + 127951 = 128010
- 79 + 127931 = 128010
- 89 + 127921 = 128010
- 97 + 127913 = 128010
- 137 + 127873 = 128010
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 9F 90 8A (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.244.10.
- Address
- 0.1.244.10
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.244.10
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 128,010 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 128010 first appears in π at position 865,644 of the decimal expansion (the 865,644ordinal-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
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.