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230328331 = 71245691
BaseRepresentation
bin11011011101010…
…00100000001011
3121001101220001221
431232220200023
5432431001311
634504422511
75464521112
oct1556504013
9531356057
10230328331
111090180a2
1265177a37
133894586c
1422838c79
151534a671
hexdba880b

230328331 has 6 divisors (see below), whose sum is σ = 233623196. Its totient is φ = 227079300.

The previous prime is 230328313. The next prime is 230328337. The reversal of 230328331 is 133823032.

It is a happy number.

It is not a de Polignac number, because 230328331 - 227 = 96110603 is a prime.

It is a super-2 number, since 2×2303283312 = 106102280122491122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230328296 and 230328305.

It is not an unprimeable number, because it can be changed into a prime (230328337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17805 + ... + 27886.

Almost surely, 2230328331 is an apocalyptic number.

230328331 is a deficient number, since it is larger than the sum of its proper divisors (3294865).

230328331 is an frugal number, since it uses more digits than its factorization.

230328331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45833 (or 45762 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 230328331 is about 15176.5717802144. The cubic root of 230328331 is about 612.9839737779.

The spelling of 230328331 in words is "two hundred thirty million, three hundred twenty-eight thousand, three hundred thirty-one".

Divisors: 1 71 5041 45691 3244061 230328331