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231130304 = 263611411
BaseRepresentation
bin11011100011011…
…00010011000000
3121002220122011122
431301230103000
5433132132204
634533531412
75504401166
oct1561542300
9532818148
10231130304
11109515689
12654a3b68
1338b668c2
14229a7236
15154580be
hexdc6c4c0

231130304 has 14 divisors (see below), whose sum is σ = 458649324. Its totient is φ = 115565120.

The previous prime is 231130301. The next prime is 231130321. The reversal of 231130304 is 403031132.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (231130301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1805642 + ... + 1805769.

It is an arithmetic number, because the mean of its divisors is an integer number (32760666).

Almost surely, 2231130304 is an apocalyptic number.

It is an amenable number.

231130304 is a deficient number, since it is larger than the sum of its proper divisors (227519020).

231130304 is an equidigital number, since it uses as much as digits as its factorization.

231130304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3611423 (or 3611413 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 231130304 is about 15202.9702361085. The cubic root of 231130304 is about 613.6945928858.

Adding to 231130304 its reverse (403031132), we get a palindrome (634161436).

The spelling of 231130304 in words is "two hundred thirty-one million, one hundred thirty thousand, three hundred four".

Divisors: 1 2 4 8 16 32 64 3611411 7222822 14445644 28891288 57782576 115565152 231130304