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395105296 = 24176123813
BaseRepresentation
bin10111100011001…
…101010000010000
31000112110102120111
4113203031100100
51302121332141
6103112251104
712535224325
oct2743152020
91015412514
10395105296
11193032503
12b03a0a94
1363b19721
143a68cb4c
1524a48381
hex178cd410

395105296 has 40 divisors (see below), whose sum is σ = 823869144. Its totient is φ = 182876160.

The previous prime is 395105287. The next prime is 395105297. The reversal of 395105296 is 692501593.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 23386896 + 371718400 = 4836^2 + 19280^2 .

It is a super-2 number, since 2×3951052962 = 312216389854495232, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (395105297) 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, 4686 + ... + 28498.

Almost surely, 2395105296 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 395105296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411934572).

395105296 is an abundant number, since it is smaller than the sum of its proper divisors (428763848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

395105296 is a wasteful number, since it uses less digits than its factorization.

395105296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23899 (or 23893 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 40.

The square root of 395105296 is about 19877.2557462040. The cubic root of 395105296 is about 733.7885830731.

The spelling of 395105296 in words is "three hundred ninety-five million, one hundred five thousand, two hundred ninety-six".

Divisors: 1 2 4 8 16 17 34 61 68 122 136 244 272 488 976 1037 2074 4148 8296 16592 23813 47626 95252 190504 381008 404821 809642 1452593 1619284 2905186 3238568 5810372 6477136 11620744 23241488 24694081 49388162 98776324 197552648 395105296