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232331013 = 32130719751
BaseRepresentation
bin11011101100100…
…01011100000101
3121012011122020100
431312101130011
5433434043023
635015354313
75520531615
oct1566213405
9535148210
10232331013
1110a165802
1265982999
1339197295
1422bdaa45
15155e3c43
hexdd91705

232331013 has 12 divisors (see below), whose sum is σ = 335863008. Its totient is φ = 154761000.

The previous prime is 232331003. The next prime is 232331059. The reversal of 232331013 is 310133232.

232331013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 232331013 - 26 = 232330949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232331003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1888 + ... + 21638.

It is an arithmetic number, because the mean of its divisors is an integer number (27988584).

Almost surely, 2232331013 is an apocalyptic number.

It is an amenable number.

232331013 is a deficient number, since it is larger than the sum of its proper divisors (103531995).

232331013 is a wasteful number, since it uses less digits than its factorization.

232331013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21064 (or 21061 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 232331013 is about 15242.4083726949. The cubic root of 232331013 is about 614.7554609777.

Adding to 232331013 its reverse (310133232), we get a palindrome (542464245).

The spelling of 232331013 in words is "two hundred thirty-two million, three hundred thirty-one thousand, thirteen".

Divisors: 1 3 9 1307 3921 11763 19751 59253 177759 25814557 77443671 232331013