1,042,021
1,042,021 is a prime, odd.
1,042,021 (one million forty-two thousand twenty-one) is an odd 7-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0xFE665.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 7
- Digit sum
- 10
- Digit product
- 0
- Digital root
- 1
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 1,202,401
- Square (n²)
- 1,085,807,764,441
- Cube (n³)
- 1,131,434,492,510,575,261
- Divisor count
- 2
- σ(n) — sum of divisors
- 1,042,022
- φ(n) — Euler's totient
- 1,042,020
Primality
1,042,021 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√1,042,021 = [1020; (1, 3, 1, 6, 4, 1, 1, 1, 2, 1, 3, 18, 8, 21, 2, 1, 2, 1, 2, 2, 2, 1, 26, 6, …)]
Representations
- In words
- one million forty-two thousand twenty-one
- Ordinal
- 1042021st
- Binary
- 11111110011001100101
- Octal
- 3763145
- Hexadecimal
- 0xFE665
- Base64
- D+Zl
- One's complement
- 4,293,925,274 (32-bit)
- Scientific notation
- 1.042021 × 10⁶
- As a duration
- 1,042,021 s = 12 days, 1 hour, 27 minutes, 1 second
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹
- Egyptian hieroglyphic
- 𓁨𓂍𓂍𓂍𓂍𓆼𓆼𓎆𓎆𓏺
- Chinese
- 一百零四萬二千零二十一
- Chinese (financial)
- 壹佰零肆萬貳仟零貳拾壹
Also seen as
As an unsigned 32-bit integer, this is the IPv4 address 0.15.230.101.
- Address
- 0.15.230.101
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.230.101
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Could be parsed as a date. Most likely interpretation: Monday, January 4, 2021 (MDDYYYY (US, single-digit month)).
Other possible interpretations (3)
- 2021-04-01 (DMMYYYY (Euro, single-digit day))
- 2021-10-04 (MMDYYYY (US, single-digit day))
- 2021-04-10 (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 1,042,021 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
- Prime numbers — The building blocks of arithmetic: what primes are, why they matter, and how we find them.
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.