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23182345 = 531314813
BaseRepresentation
bin101100001101…
…1110000001001
31121121210012101
41120123300021
521413313340
62144513401
7401022004
oct130336011
947553171
1023182345
11120a426a
12791b861
134a58a84
14311653b
15207dc9a
hex161bc09

23182345 has 8 divisors (see below), whose sum is σ = 27909576. Its totient is φ = 18485376.

The previous prime is 23182333. The next prime is 23182351. The reversal of 23182345 is 54328132.

It can be written as a sum of positive squares in 4 ways, for example, as 419904 + 22762441 = 648^2 + 4771^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23182345 - 219 = 22658057 is a prime.

It is a super-2 number, since 2×231823452 = 1074842239398050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5842 + ... + 8971.

It is an arithmetic number, because the mean of its divisors is an integer number (3488697).

Almost surely, 223182345 is an apocalyptic number.

It is an amenable number.

23182345 is a deficient number, since it is larger than the sum of its proper divisors (4727231).

23182345 is a wasteful number, since it uses less digits than its factorization.

23182345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15131.

The product of its digits is 5760, while the sum is 28.

The square root of 23182345 is about 4814.8047727816. The cubic root of 23182345 is about 285.1362639661.

The spelling of 23182345 in words is "twenty-three million, one hundred eighty-two thousand, three hundred forty-five".

Divisors: 1 5 313 1565 14813 74065 4636469 23182345