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397588025 = 5230751803
BaseRepresentation
bin10111101100101…
…011011000111001
31000201010120020102
4113230223120321
51303240304100
6103241405145
712565304522
oct2754533071
91021116212
10397588025
1119447884a
12b11997b5
13644a87b3
143ab37849
1524d88cd5
hex17b2b639

397588025 has 12 divisors (see below), whose sum is σ = 494624592. Its totient is φ = 317028240.

The previous prime is 397588021. The next prime is 397588031. The reversal of 397588025 is 520885793.

It is not a de Polignac number, because 397588025 - 22 = 397588021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (397588021) 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 11 ways as a sum of consecutive naturals, for example, 18227 + ... + 33576.

It is an arithmetic number, because the mean of its divisors is an integer number (41218716).

Almost surely, 2397588025 is an apocalyptic number.

It is an amenable number.

397588025 is a deficient number, since it is larger than the sum of its proper divisors (97036567).

397588025 is a wasteful number, since it uses less digits than its factorization.

397588025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52120 (or 52115 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 47.

The square root of 397588025 is about 19939.6094495354. The cubic root of 397588025 is about 735.3223476942.

The spelling of 397588025 in words is "three hundred ninety-seven million, five hundred eighty-eight thousand, twenty-five".

Divisors: 1 5 25 307 1535 7675 51803 259015 1295075 15903521 79517605 397588025