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397941325 = 5215917653
BaseRepresentation
bin10111101110000…
…001101001001101
31000201210111212121
4113232001221031
51303333110300
6103253132541
712601305535
oct2756015115
91021714777
10397941325
1119469a231
12b132a151
13645a0552
143abca4c5
1524e0881a
hex17b81a4d

397941325 has 6 divisors (see below), whose sum is σ = 493447274. Its totient is φ = 318353040.

The previous prime is 397941311. The next prime is 397941329. The reversal of 397941325 is 523149793.

It can be written as a sum of positive squares in 3 ways, for example, as 113614281 + 284327044 = 10659^2 + 16862^2 .

It is not a de Polignac number, because 397941325 - 27 = 397941197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397941329) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7958802 + ... + 7958851.

Almost surely, 2397941325 is an apocalyptic number.

It is an amenable number.

397941325 is a deficient number, since it is larger than the sum of its proper divisors (95505949).

397941325 is a wasteful number, since it uses less digits than its factorization.

397941325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15917663 (or 15917658 counting only the distinct ones).

The product of its digits is 204120, while the sum is 43.

The square root of 397941325 is about 19948.4667330600. The cubic root of 397941325 is about 735.5400877138.

The spelling of 397941325 in words is "three hundred ninety-seven million, nine hundred forty-one thousand, three hundred twenty-five".

Divisors: 1 5 25 15917653 79588265 397941325