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230535251 = 312415851
BaseRepresentation
bin11011011110110…
…11000001010011
3121001210101220122
431233123001103
5433004112001
634513100455
75466342302
oct1557330123
9531711818
10230535251
11109149601
126525772b
13389b8abb
1422890439
151538bb1b
hexdbdb053

230535251 has 12 divisors (see below), whose sum is σ = 244063512. Its totient is φ = 217620000.

The previous prime is 230535247. The next prime is 230535257. The reversal of 230535251 is 152535032.

It is not a de Polignac number, because 230535251 - 22 = 230535247 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 230535251.

It is not an unprimeable number, because it can be changed into a prime (230535257) 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, 36476 + ... + 42326.

It is an arithmetic number, because the mean of its divisors is an integer number (20338626).

Almost surely, 2230535251 is an apocalyptic number.

230535251 is a deficient number, since it is larger than the sum of its proper divisors (13528261).

230535251 is an equidigital number, since it uses as much as digits as its factorization.

230535251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5954 (or 5923 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 230535251 is about 15183.3873361645. The cubic root of 230535251 is about 613.1674809183.

The spelling of 230535251 in words is "two hundred thirty million, five hundred thirty-five thousand, two hundred fifty-one".

Divisors: 1 31 41 961 1271 5851 39401 181381 239891 5622811 7436621 230535251