1,028,572
1,028,572 is a composite number, even.
1,028,572 (one million twenty-eight thousand five hundred seventy-two) is an even 7-digit number. It is a composite number with 12 divisors, and factors as 2² × 29 × 8,867. Written other ways, in hexadecimal, 0xFB1DC.
Interestingness
Properties
- Parity
- Even
- Digit count
- 7
- Digit sum
- 25
- Digit product
- 0
- Digital root
- 7
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 2,758,201
- Square (n²)
- 1,057,960,359,184
- Cube (n³)
- 1,088,188,402,566,605,248
- Divisor count
- 12
- σ(n) — sum of divisors
- 1,862,280
- φ(n) — Euler's totient
- 496,496
- Sum of prime factors
- 8,900
Primality
Prime factorization: 2 2 × 29 × 8867
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√1,028,572 = [1014; (5, 2, 1, 1, 6, 5, 4, 2, 1, 2, 21, 1, 2, 11, 1, 1, 1, 38, 2, 1, 6, 8, 1, 2, …)]
Period length 52 — the block in parentheses repeats forever.
Representations
- In words
- one million twenty-eight thousand five hundred seventy-two
- Ordinal
- 1028572nd
- Binary
- 11111011000111011100
- Octal
- 3730734
- Hexadecimal
- 0xFB1DC
- Base64
- D7Hc
- One's complement
- 4,293,938,723 (32-bit)
- Scientific notation
- 1.028572 × 10⁶
- As a duration
- 1,028,572 s = 11 days, 21 hours, 42 minutes, 52 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓁨𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
- Chinese
- 一百零二萬八千五百七十二
- Chinese (financial)
- 壹佰零貳萬捌仟伍佰柒拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1028572, here are decompositions:
- 3 + 1028569 = 1028572
- 11 + 1028561 = 1028572
- 101 + 1028471 = 1028572
- 179 + 1028393 = 1028572
- 239 + 1028333 = 1028572
- 263 + 1028309 = 1028572
- 269 + 1028303 = 1028572
- 359 + 1028213 = 1028572
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.177.220.
- Address
- 0.15.177.220
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.177.220
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Could be parsed as a date. Most likely interpretation: Thursday, January 2, 8572 (MDDYYYY (US, single-digit month)).
Other possible interpretations (3)
- 8572-02-01 (DMMYYYY (Euro, single-digit day))
- 8572-10-02 (MMDYYYY (US, single-digit day))
- 8572-02-10 (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 1,028,572 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°.