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393195601 = 1729797557
BaseRepresentation
bin10111011011111…
…011000001010001
31000101212101222001
4113123323001101
51301124224401
6103003314001
712513051601
oct2733730121
91011771861
10393195601
11191a48747
12ab81b901
13635cb426
143a312c01
15247bc601
hex176fb051

393195601 has 8 divisors (see below), whose sum is σ = 430681320. Its totient is φ = 357305088.

The previous prime is 393195589. The next prime is 393195613. The reversal of 393195601 is 106591393.

It is an interprime number because it is at equal distance from previous prime (393195589) and next prime (393195613).

It can be written as a sum of positive squares in 4 ways, for example, as 123743376 + 269452225 = 11124^2 + 16415^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 393195601 - 213 = 393187409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (393195631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 398286 + ... + 399271.

It is an arithmetic number, because the mean of its divisors is an integer number (53835165).

Almost surely, 2393195601 is an apocalyptic number.

It is an amenable number.

393195601 is a deficient number, since it is larger than the sum of its proper divisors (37485719).

393195601 is a wasteful number, since it uses less digits than its factorization.

393195601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797603.

The product of its (nonzero) digits is 21870, while the sum is 37.

The square root of 393195601 is about 19829.1603705250. The cubic root of 393195601 is about 732.6044462727.

The spelling of 393195601 in words is "three hundred ninety-three million, one hundred ninety-five thousand, six hundred one".

Divisors: 1 17 29 493 797557 13558469 23129153 393195601