1,009,980
1,009,980 is a composite number, even.
1,009,980 (one million nine thousand nine hundred eighty) is an even 7-digit number. It is a composite number with 72 divisors, and factors as 2² × 3² × 5 × 31 × 181. Its proper divisors sum to 2,169,924, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF693C.
Interestingness
Properties
- Parity
- Even
- Digit count
- 7
- Digit sum
- 27
- Digit product
- 0
- Digital root
- 9
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 899,001
- Flips to (rotate 180°)
- 866,001
- Square (n²)
- 1,020,059,600,400
- Cube (n³)
- 1,030,239,795,211,992,000
- Divisor count
- 72
- σ(n) — sum of divisors
- 3,179,904
- φ(n) — Euler's totient
- 259,200
- Sum of prime factors
- 227
Primality
Prime factorization: 2 2 × 3 2 × 5 × 31 × 181
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√1,009,980 = [1004; (1, 43, 1, 1, 1, 222, 1, 1, 1, 43, 1, 2008)]
Period length 12 — the block in parentheses repeats forever.
Representations
- In words
- one million nine thousand nine hundred eighty
- Ordinal
- 1009980th
- Binary
- 11110110100100111100
- Octal
- 3664474
- Hexadecimal
- 0xF693C
- Base64
- D2k8
- One's complement
- 4,293,957,315 (32-bit)
- Scientific notation
- 1.00998 × 10⁶
- As a duration
- 1,009,980 s = 11 days, 16 hours, 33 minutes
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋 𒌋𒌋𒌋𒁹𒁹𒁹 ·
- Egyptian hieroglyphic
- 𓁨𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Chinese
- 一百萬九千九百八十
- Chinese (financial)
- 壹佰萬玖仟玖佰捌拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1009980, here are decompositions:
- 17 + 1009963 = 1009980
- 29 + 1009951 = 1009980
- 43 + 1009937 = 1009980
- 53 + 1009927 = 1009980
- 71 + 1009909 = 1009980
- 79 + 1009901 = 1009980
- 107 + 1009873 = 1009980
- 137 + 1009843 = 1009980
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.105.60.
- Address
- 0.15.105.60
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.105.60
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 1,009,980 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°.