1,002,138
1,002,138 is a composite number, even.
1,002,138 (one million two thousand one hundred thirty-eight) is an even 7-digit number. It is a composite number with 8 divisors, and factors as 2 × 3 × 167,023. Its proper divisors sum to 1,002,150, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF4A9A.
Interestingness
Properties
- Parity
- Even
- Digit count
- 7
- Digit sum
- 15
- Digit product
- 0
- Digital root
- 6
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 8,312,001
- Square (n²)
- 1,004,280,571,044
- Cube (n³)
- 1,006,427,722,904,892,072
- Divisor count
- 8
- σ(n) — sum of divisors
- 2,004,288
- φ(n) — Euler's totient
- 334,044
- Sum of prime factors
- 167,028
Primality
Prime factorization: 2 × 3 × 167023
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√1,002,138 = [1001; (14, 1, 1, 1, 1, 2, 3, 285, 1, 2, 1, 1, 1, 1, 1, 14, 1, 8, 1, 39, 1, 24, 2, 1, …)]
Representations
- In words
- one million two thousand one hundred thirty-eight
- Ordinal
- 1002138th
- Binary
- 11110100101010011010
- Octal
- 3645232
- Hexadecimal
- 0xF4A9A
- Base64
- D0qa
- One's complement
- 4,293,965,157 (32-bit)
- Scientific notation
- 1.002138 × 10⁶
- As a duration
- 1,002,138 s = 11 days, 14 hours, 22 minutes, 18 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓁨𓆼𓆼𓍢𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Chinese
- 一百萬二千一百三十八
- Chinese (financial)
- 壹佰萬貳仟壹佰參拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1002138, here are decompositions:
- 17 + 1002121 = 1002138
- 29 + 1002109 = 1002138
- 37 + 1002101 = 1002138
- 47 + 1002091 = 1002138
- 61 + 1002077 = 1002138
- 89 + 1002049 = 1002138
- 149 + 1001989 = 1002138
- 157 + 1001981 = 1002138
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.74.154.
- Address
- 0.15.74.154
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.74.154
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 1,002,138 and was likely granted around 1911.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 1002138 first appears in π at position 206,956 of the decimal expansion (the 206,956ordinal-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°.