1,018,980
1,018,980 is a composite number, even.
1,018,980 (one million eighteen thousand nine hundred eighty) is an even 7-digit number. It is a composite number with 120 divisors, and factors as 2² × 3⁴ × 5 × 17 × 37. Its proper divisors sum to 2,457,108, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF8C64.
Interestingness
Properties
- Parity
- Even
- Digit count
- 7
- Digit sum
- 27
- Digit product
- 0
- Digital root
- 9
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 898,101
- Flips to (rotate 180°)
- 868,101
- Square (n²)
- 1,038,320,240,400
- Cube (n³)
- 1,058,027,558,562,792,000
- Divisor count
- 120
- σ(n) — sum of divisors
- 3,476,088
- φ(n) — Euler's totient
- 248,832
- Sum of prime factors
- 75
Primality
Prime factorization: 2 2 × 3 4 × 5 × 17 × 37
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√1,018,980 = [1009; (2, 4, 12, 1, 4, 13, 1, 2, 1, 1, 2, 1, 4, 2, 1, 1, 3, 1, 5, 2, 4, 2, 1, 1, …)]
Representations
- In words
- one million eighteen thousand nine hundred eighty
- Ordinal
- 1018980th
- Binary
- 11111000110001100100
- Octal
- 3706144
- Hexadecimal
- 0xF8C64
- Base64
- D4xk
- One's complement
- 4,293,948,315 (32-bit)
- Scientific notation
- 1.01898 × 10⁶
- As a duration
- 1,018,980 s = 11 days, 19 hours, 3 minutes
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒁹𒁹𒁹 ·
- Egyptian hieroglyphic
- 𓁨𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Chinese
- 一百零一萬八千九百八十
- Chinese (financial)
- 壹佰零壹萬捌仟玖佰捌拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1018980, here are decompositions:
- 13 + 1018967 = 1018980
- 23 + 1018957 = 1018980
- 31 + 1018949 = 1018980
- 43 + 1018937 = 1018980
- 73 + 1018907 = 1018980
- 101 + 1018879 = 1018980
- 107 + 1018873 = 1018980
- 163 + 1018817 = 1018980
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.140.100.
- Address
- 0.15.140.100
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.140.100
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Could be parsed as a date. Most likely interpretation: Saturday, January 1, 8980 (MDDYYYY (US, single-digit month)).
Other possible interpretations (2)
- 8980-10-01 (MMDYYYY (US, single-digit day))
- 8980-01-10 (DDMYYYY (Euro, single-digit month))
This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 1,018,980 and was likely granted around 1911.
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°.