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8572 = 222143
BaseRepresentation
bin10000101111100
3102202111
42011330
5233242
6103404
733664
oct20574
912674
108572
116493
124b64
133b95
1431a4
152817
hex217c

8572 has 6 divisors (see below), whose sum is σ = 15008. Its totient is φ = 4284.

The previous prime is 8563. The next prime is 8573. The reversal of 8572 is 2758.

8572 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8573) by changing a digit.

8572 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1068 + ... + 1075.

28572 is an apocalyptic number.

It is an amenable number.

8572 is a deficient number, since it is larger than the sum of its proper divisors (6436).

8572 is a wasteful number, since it uses less digits than its factorization.

8572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2147 (or 2145 counting only the distinct ones).

The product of its digits is 560, while the sum is 22.

The square root of 8572 is about 92.5850959928. The cubic root of 8572 is about 20.4657369358.

The spelling of 8572 in words is "eight thousand, five hundred seventy-two".

Divisors: 1 2 4 2143 4286 8572