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345931038 = 23219218391
BaseRepresentation
bin10100100111100…
…111110100011110
3220002221010011200
4110213213310132
51202024243123
654154300330
711400236205
oct2447476436
9802833150
10345931038
111682a6122
1297a276a6
135689012b
1433d2c23c
1520583143
hex149e7d1e

345931038 has 12 divisors (see below), whose sum is σ = 749517288. Its totient is φ = 115310340.

The previous prime is 345931037. The next prime is 345931051. The reversal of 345931038 is 830139543.

345931038 is a `hidden beast` number, since 34 + 593 + 1 + 0 + 38 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 345930993 and 345931011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345931037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9609178 + ... + 9609213.

It is an arithmetic number, because the mean of its divisors is an integer number (62459774).

Almost surely, 2345931038 is an apocalyptic number.

345931038 is an abundant number, since it is smaller than the sum of its proper divisors (403586250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

345931038 is a wasteful number, since it uses less digits than its factorization.

345931038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19218399 (or 19218396 counting only the distinct ones).

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

The square root of 345931038 is about 18599.2214353182. The cubic root of 345931038 is about 701.9882507104.

The spelling of 345931038 in words is "three hundred forty-five million, nine hundred thirty-one thousand, thirty-eight".

Divisors: 1 2 3 6 9 18 19218391 38436782 57655173 115310346 172965519 345931038