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233825931 = 3225980659
BaseRepresentation
bin11011110111111…
…10011010001011
3121021222120212200
431323332122023
5434324412211
635111411243
75536326153
oct1573763213
9537876780
10233825931
1110aa96979
1266383b23
133959b851
14230a9763
15157dbb56
hexdefe68b

233825931 has 6 divisors (see below), whose sum is σ = 337748580. Its totient is φ = 155883948.

The previous prime is 233825929. The next prime is 233825953. The reversal of 233825931 is 139528332.

It is not a de Polignac number, because 233825931 - 21 = 233825929 is a prime.

It is a super-2 number, since 2×2338259312 = 109349132016033522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (233825971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12990321 + ... + 12990338.

It is an arithmetic number, because the mean of its divisors is an integer number (56291430).

Almost surely, 2233825931 is an apocalyptic number.

233825931 is a deficient number, since it is larger than the sum of its proper divisors (103922649).

233825931 is a wasteful number, since it uses less digits than its factorization.

233825931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25980665 (or 25980662 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 233825931 is about 15291.3678590243. The cubic root of 233825931 is about 616.0711770160.

The spelling of 233825931 in words is "two hundred thirty-three million, eight hundred twenty-five thousand, nine hundred thirty-one".

Divisors: 1 3 9 25980659 77941977 233825931