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23232513 = 343180097
BaseRepresentation
bin101100010100…
…0000000000001
31121201100000110
41120220000001
521421420023
62145541533
7401321163
oct130500001
947640013
1023232513
1112128a27
1279448a9
134a75865
14312a933
15208da93
hex1628001

23232513 has 8 divisors (see below), whose sum is σ = 31697248. Its totient is φ = 15128064.

The previous prime is 23232499. The next prime is 23232529. The reversal of 23232513 is 31523232.

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

It is not a de Polignac number, because 23232513 - 25 = 23232481 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23232513.

It is not an unprimeable number, because it can be changed into a prime (23236513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89920 + ... + 90177.

It is an arithmetic number, because the mean of its divisors is an integer number (3962156).

It is a Proth number, since it is equal to 709 ⋅ 215 + 1 and 709 < 215.

Almost surely, 223232513 is an apocalyptic number.

It is an amenable number.

23232513 is a deficient number, since it is larger than the sum of its proper divisors (8464735).

23232513 is a wasteful number, since it uses less digits than its factorization.

23232513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180143.

The product of its digits is 1080, while the sum is 21.

The square root of 23232513 is about 4820.0117219774. The cubic root of 23232513 is about 285.3417998271.

Adding to 23232513 its reverse (31523232), we get a palindrome (54755745).

The spelling of 23232513 in words is "twenty-three million, two hundred thirty-two thousand, five hundred thirteen".

Divisors: 1 3 43 129 180097 540291 7744171 23232513