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23152457 = 113331619
BaseRepresentation
bin101100001010…
…0011101001001
31121120021012102
41120110131021
521411334312
62144123145
7400535606
oct130243511
947507172
1023152457
1112083869
1279064b5
134a482a3
1431096ad
152074ec2
hex1614749

23152457 has 8 divisors (see below), whose sum is σ = 23465760. Its totient is φ = 22841280.

The previous prime is 23152439. The next prime is 23152463. The reversal of 23152457 is 75425132.

It is a happy number.

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 23152457 - 28 = 23152201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23152427) by changing a digit.

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, 37094 + ... + 37712.

It is an arithmetic number, because the mean of its divisors is an integer number (2933220).

Almost surely, 223152457 is an apocalyptic number.

It is an amenable number.

23152457 is a deficient number, since it is larger than the sum of its proper divisors (313303).

23152457 is a wasteful number, since it uses less digits than its factorization.

23152457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063.

The product of its digits is 8400, while the sum is 29.

The square root of 23152457 is about 4811.7000114305. The cubic root of 23152457 is about 285.0136732950.

Adding to 23152457 its reverse (75425132), we get a palindrome (98577589).

The spelling of 23152457 in words is "twenty-three million, one hundred fifty-two thousand, four hundred fifty-seven".

Divisors: 1 113 331 619 37403 69947 204889 23152457