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232615013 = 1296717939
BaseRepresentation
bin11011101110101…
…10110001100101
3121012201001210212
431313112301211
5434022140023
635025425205
75523123611
oct1567266145
9535631725
10232615013
1110a33a114
1265a9b205
1339266627
1422c72341
151564ce78
hexddd6c65

232615013 has 4 divisors (see below), whose sum is σ = 232645920. Its totient is φ = 232584108.

The previous prime is 232615007. The next prime is 232615037. The reversal of 232615013 is 310516232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-232615013 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 232615013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232615073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3998 + ... + 21936.

It is an arithmetic number, because the mean of its divisors is an integer number (58161480).

Almost surely, 2232615013 is an apocalyptic number.

It is an amenable number.

232615013 is a deficient number, since it is larger than the sum of its proper divisors (30907).

232615013 is a wasteful number, since it uses less digits than its factorization.

232615013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30906.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 232615013 is about 15251.7216405231. The cubic root of 232615013 is about 615.0058500777.

The spelling of 232615013 in words is "two hundred thirty-two million, six hundred fifteen thousand, thirteen".

Divisors: 1 12967 17939 232615013