Number
1,572
1,572 is a composite number, even, a calendar year.
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 15
- Digital root
- 6
- Palindrome
- No
- Divisor count
- 12
- σ(n) — sum of divisors
- 3,696
Primality
Prime factorization: 2 2 × 3 × 131
Divisors & multiples
Aliquot sum (sum of proper divisors):
2,124
First multiples
Representations
- In words
- one thousand five hundred seventy-two
- Ordinal
- 1572nd
- Roman numeral
- MDLXXII
- Binary
- 11000100100
- Octal
- 3044
- Hexadecimal
- 624
Also seen as
Goldbach decomposition
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1572, here are decompositions:
- 5 + 1567 = 1572
- 13 + 1559 = 1572
- 19 + 1553 = 1572
- 23 + 1549 = 1572
- 29 + 1543 = 1572
- 41 + 1531 = 1572
- 61 + 1511 = 1572
- 73 + 1499 = 1572
Showing the first eight; more decompositions exist.
Unicode codepoint
ؤ
U+0624
Other letter (Lo)
UTF-8 encoding: D8 A4 (2 bytes).
Hex color
#000624
RGB(0, 6, 36)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.6.36.