1,042,440
1,042,440 is a composite number, even.
1,042,440 (one million forty-two thousand four hundred forty) is an even 7-digit number. It is a composite number with 128 divisors, and factors as 2³ × 3 × 5 × 7 × 17 × 73. Its proper divisors sum to 2,793,720, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xFE808.
Interestingness
Properties
- Parity
- Even
- Digit count
- 7
- Digit sum
- 15
- Digit product
- 0
- Digital root
- 6
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 442,401
- Square (n²)
- 1,086,681,153,600
- Cube (n³)
- 1,132,799,901,758,784,000
- Divisor count
- 128
- σ(n) — sum of divisors
- 3,836,160
- φ(n) — Euler's totient
- 221,184
- Sum of prime factors
- 111
Primality
Prime factorization: 2 3 × 3 × 5 × 7 × 17 × 73
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√1,042,440 = [1020; (1, 2040)]
Period length 2 — the block in parentheses repeats forever.
Representations
- In words
- one million forty-two thousand four hundred forty
- Ordinal
- 1042440th
- Binary
- 11111110100000001000
- Octal
- 3764010
- Hexadecimal
- 0xFE808
- Base64
- D+gI
- One's complement
- 4,293,924,855 (32-bit)
- Scientific notation
- 1.04244 × 10⁶
- As a duration
- 1,042,440 s = 12 days, 1 hour, 34 minutes
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 ·
- Egyptian hieroglyphic
- 𓁨𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆
- Chinese
- 一百零四萬二千四百四十
- Chinese (financial)
- 壹佰零肆萬貳仟肆佰肆拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1042440, here are decompositions:
- 13 + 1042427 = 1042440
- 41 + 1042399 = 1042440
- 59 + 1042381 = 1042440
- 67 + 1042373 = 1042440
- 71 + 1042369 = 1042440
- 83 + 1042357 = 1042440
- 107 + 1042333 = 1042440
- 109 + 1042331 = 1042440
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.232.8.
- Address
- 0.15.232.8
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.232.8
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Could be parsed as a date. Most likely interpretation: Wednesday, January 4, 2440 (MDDYYYY (US, single-digit month)).
Other possible interpretations (3)
- 2440-04-01 (DMMYYYY (Euro, single-digit day))
- 2440-10-04 (MMDYYYY (US, single-digit day))
- 2440-04-10 (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 1,042,440 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°.