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397060385 = 51923181721
BaseRepresentation
bin10111101010101…
…010100100100001
31000200010202110012
4113222222210201
51303121413020
6103222214305
712560646311
oct2752524441
91020122405
10397060385
11194148387
12b0b84395
1364352597
143aa3b441
1524cd27c5
hex17aaa921

397060385 has 16 divisors (see below), whose sum is σ = 523359360. Its totient is φ = 287844480.

The previous prime is 397060351. The next prime is 397060393. The reversal of 397060385 is 583060793.

It is not a de Polignac number, because 397060385 - 216 = 396994849 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88676 + ... + 93045.

It is an arithmetic number, because the mean of its divisors is an integer number (32709960).

Almost surely, 2397060385 is an apocalyptic number.

It is an amenable number.

397060385 is a deficient number, since it is larger than the sum of its proper divisors (126298975).

397060385 is a wasteful number, since it uses less digits than its factorization.

397060385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181768.

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

The square root of 397060385 is about 19926.3741056922. The cubic root of 397060385 is about 734.9969210231.

The spelling of 397060385 in words is "three hundred ninety-seven million, sixty thousand, three hundred eighty-five".

Divisors: 1 5 19 23 95 115 437 2185 181721 908605 3452699 4179583 17263495 20897915 79412077 397060385