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390429275 = 5220537607
BaseRepresentation
bin10111010001010…
…111101001011011
31000012122212021112
4113101113221123
51244422214100
6102424130535
712450410525
oct2721275133
91005585245
10390429275
11190429325
12aa906a4b
1362b70252
1439bd2a15
1524422b35
hex17457a5b

390429275 has 12 divisors (see below), whose sum is σ = 484431792. Its totient is φ = 312150240.

The previous prime is 390429269. The next prime is 390429287. The reversal of 390429275 is 572924093.

390429275 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 390429275 - 26 = 390429211 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 47522 + ... + 55128.

It is an arithmetic number, because the mean of its divisors is an integer number (40369316).

Almost surely, 2390429275 is an apocalyptic number.

390429275 is a deficient number, since it is larger than the sum of its proper divisors (94002517).

390429275 is a wasteful number, since it uses less digits than its factorization.

390429275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9670 (or 9665 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 390429275 is about 19759.2832612927. The cubic root of 390429275 is about 730.8823227700.

The spelling of 390429275 in words is "three hundred ninety million, four hundred twenty-nine thousand, two hundred seventy-five".

Divisors: 1 5 25 2053 7607 10265 38035 51325 190175 15617171 78085855 390429275