Search a number
-
+
231329307 = 3117009979
BaseRepresentation
bin11011100100111…
…00111000011011
3121010021202011010
431302130320123
5433210014212
634542105003
75506160316
oct1562347033
9533252133
10231329307
11109641150
126557b163
1338c06361
1422a1997d
151549703c
hexdc9ce1b

231329307 has 8 divisors (see below), whose sum is σ = 336479040. Its totient is φ = 140199560.

The previous prime is 231329297. The next prime is 231329311. The reversal of 231329307 is 703923132.

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 231329307 - 26 = 231329243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231329407) 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, 3504957 + ... + 3505022.

It is an arithmetic number, because the mean of its divisors is an integer number (42059880).

Almost surely, 2231329307 is an apocalyptic number.

231329307 is a deficient number, since it is larger than the sum of its proper divisors (105149733).

231329307 is a wasteful number, since it uses less digits than its factorization.

231329307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7009993.

The product of its (nonzero) digits is 6804, while the sum is 30.

The square root of 231329307 is about 15209.5137003127. The cubic root of 231329307 is about 613.8706725391.

The spelling of 231329307 in words is "two hundred thirty-one million, three hundred twenty-nine thousand, three hundred seven".

Divisors: 1 3 11 33 7009979 21029937 77109769 231329307