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397095324025 = 521260312
BaseRepresentation
bin1011100011101001011…
…10011100100101111001
31101221222020220112122011
411301310232130211321
523001222400332100
6502231214525521
740455251363641
oct5616456344571
91357866815564
10397095324025
11143452a5a344
1264b625068a1
132b5a492116a
14153104d1521
15a4e18d3bba
hex5c74b9c979

397095324025 has 9 divisors (see below), whose sum is σ = 492402108783. Its totient is φ = 317673738600.

The previous prime is 397095324013. The next prime is 397095324049. The reversal of 397095324025 is 520423590793.

The square root of 397095324025 is 630155.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 142954316649 + 254141007376 = 378093^2 + 504124^2 .

It is not a de Polignac number, because 397095324025 - 25 = 397095323993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 397095324025.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3087760 + ... + 3213790.

Almost surely, 2397095324025 is an apocalyptic number.

397095324025 is the 630155-th square number.

397095324025 is the 315078-th centered octagonal number.

It is an amenable number.

397095324025 is a deficient number, since it is larger than the sum of its proper divisors (95306784758).

397095324025 is an frugal number, since it uses more digits than its factorization.

397095324025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252072 (or 126036 counting only the distinct ones).

The product of its (nonzero) digits is 2041200, while the sum is 49.

Multiplying 397095324025 by its sum of digits (49), we get a square (19457670877225 = 44110852).

The spelling of 397095324025 in words is "three hundred ninety-seven billion, ninety-five million, three hundred twenty-four thousand, twenty-five".

Divisors: 1 5 25 126031 630155 3150775 15883812961 79419064805 397095324025