1,021,020
1,021,020 is a composite number, even.
1,021,020 (one million twenty-one thousand twenty) is an even 7-digit number. It is a composite number with 192 divisors, and factors as 2² × 3 × 5 × 7 × 11 × 13 × 17. Its proper divisors sum to 3,043,236, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF945C.
Interestingness
Properties
Primality
Prime factorization: 2 2 × 3 × 5 × 7 × 11 × 13 × 17
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√1,021,020 = [1010; (2, 5, 10, 5, 2, 2020)]
Period length 6 — the block in parentheses repeats forever.
Representations
- In words
- one million twenty-one thousand twenty
- Ordinal
- 1021020th
- Binary
- 11111001010001011100
- Octal
- 3712134
- Hexadecimal
- 0xF945C
- Base64
- D5Rc
- One's complement
- 4,293,946,275 (32-bit)
- Scientific notation
- 1.02102 × 10⁶
- As a duration
- 1,021,020 s = 11 days, 19 hours, 37 minutes
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 ·
- Egyptian hieroglyphic
- 𓁨𓂍𓂍𓆼𓎆𓎆
- Chinese
- 一百零二萬一千零二十
- Chinese (financial)
- 壹佰零貳萬壹仟零貳拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1021020, here are decompositions:
- 19 + 1021001 = 1021020
- 23 + 1020997 = 1021020
- 29 + 1020991 = 1021020
- 31 + 1020989 = 1021020
- 41 + 1020979 = 1021020
- 43 + 1020977 = 1021020
- 47 + 1020973 = 1021020
- 53 + 1020967 = 1021020
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.148.92.
- Address
- 0.15.148.92
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.148.92
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Could be parsed as a date. Most likely interpretation: Sunday, January 2, 1020 (MDDYYYY (US, single-digit month)).
Other possible interpretations (3)
- 1020-02-01 (DMMYYYY (Euro, single-digit day))
- 1020-10-02 (MMDYYYY (US, single-digit day))
- 1020-02-10 (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 1,021,020 and was likely granted around 1912.
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°.