Search a number
-
+
231044928 = 2631203359
BaseRepresentation
bin11011100010101…
…11011101000000
3121002202022001120
431301113131000
5433121414203
634532032240
75503564242
oct1561273500
9532668046
10231044928
11109467524
1265462680
1338b36a9a
1422984092
151543cb53
hexdc57740

231044928 has 28 divisors (see below), whose sum is σ = 611306880. Its totient is φ = 77014912.

The previous prime is 231044899. The next prime is 231044929. The reversal of 231044928 is 829440132.

231044928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231044929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601488 + ... + 601871.

Almost surely, 2231044928 is an apocalyptic number.

It is an amenable number.

231044928 is an abundant number, since it is smaller than the sum of its proper divisors (380261952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231044928 is a wasteful number, since it uses less digits than its factorization.

231044928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203374 (or 1203364 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 231044928 is about 15200.1621043988. The cubic root of 231044928 is about 613.6190204471.

The spelling of 231044928 in words is "two hundred thirty-one million, forty-four thousand, nine hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 192 1203359 2406718 3610077 4813436 7220154 9626872 14440308 19253744 28880616 38507488 57761232 77014976 115522464 231044928