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23432513 = 136726903
BaseRepresentation
bin101100101100…
…0110101000001
31122002111100212
41121120311001
521444320023
62154123505
7403113236
oct131306501
948074325
1023432513
1112255215
127a20595
134b158c0
14317d78d
1520cce78
hex1658d41

23432513 has 8 divisors (see below), whose sum is σ = 25612608. Its totient is φ = 21306384.

The previous prime is 23432473. The next prime is 23432527. The reversal of 23432513 is 31523432.

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 23432513 - 28 = 23432257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23432573) 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, 12581 + ... + 14322.

It is an arithmetic number, because the mean of its divisors is an integer number (3201576).

Almost surely, 223432513 is an apocalyptic number.

It is an amenable number.

23432513 is a deficient number, since it is larger than the sum of its proper divisors (2180095).

23432513 is a wasteful number, since it uses less digits than its factorization.

23432513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26983.

The product of its digits is 2160, while the sum is 23.

The square root of 23432513 is about 4840.7141002129. The cubic root of 23432513 is about 286.1582616343.

Adding to 23432513 its reverse (31523432), we get a palindrome (54955945).

The spelling of 23432513 in words is "twenty-three million, four hundred thirty-two thousand, five hundred thirteen".

Divisors: 1 13 67 871 26903 349739 1802501 23432513