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397926325 = 5240938917
BaseRepresentation
bin10111101101111…
…101111110110101
31000201202202022001
4113231331332311
51303332120300
6103252535301
712601214026
oct2755757665
91021682261
10397926325
11194689a35
12b1321531
1364596784
143abc4c4d
1524e0416a
hex17b7dfb5

397926325 has 12 divisors (see below), whose sum is σ = 494647780. Its totient is φ = 317554560.

The previous prime is 397926311. The next prime is 397926341. The reversal of 397926325 is 523629793.

It can be written as a sum of positive squares in 6 ways, for example, as 5846724 + 392079601 = 2418^2 + 19801^2 .

It is not a de Polignac number, because 397926325 - 215 = 397893557 is a prime.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9234 + ... + 29683.

Almost surely, 2397926325 is an apocalyptic number.

It is an amenable number.

397926325 is a deficient number, since it is larger than the sum of its proper divisors (96721455).

397926325 is a wasteful number, since it uses less digits than its factorization.

397926325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39336 (or 39331 counting only the distinct ones).

The product of its digits is 612360, while the sum is 46.

The square root of 397926325 is about 19948.0907607721. The cubic root of 397926325 is about 735.5308457818.

The spelling of 397926325 in words is "three hundred ninety-seven million, nine hundred twenty-six thousand, three hundred twenty-five".

Divisors: 1 5 25 409 2045 10225 38917 194585 972925 15917053 79585265 397926325