Search a number
-
+
395981412 = 223110329917
BaseRepresentation
bin10111100110100…
…011001001100100
31000121002221101020
4113212203021210
51302332401122
6103143131140
712545533521
oct2746431144
91017087336
10395981412
11193580772
12b0743ab0
1364065438
143a83a148
1524b6cc5c
hex179a3264

395981412 has 24 divisors (see below), whose sum is σ = 924825216. Its totient is φ = 131869728.

The previous prime is 395981407. The next prime is 395981447. The reversal of 395981412 is 214189593.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1723 + ... + 28194.

It is an arithmetic number, because the mean of its divisors is an integer number (38534384).

Almost surely, 2395981412 is an apocalyptic number.

It is an amenable number.

395981412 is an abundant number, since it is smaller than the sum of its proper divisors (528843804).

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

395981412 is a wasteful number, since it uses less digits than its factorization.

395981412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31027 (or 31025 counting only the distinct ones).

The product of its digits is 77760, while the sum is 42.

The square root of 395981412 is about 19899.2816955789. The cubic root of 395981412 is about 734.3305561684.

The spelling of 395981412 in words is "three hundred ninety-five million, nine hundred eighty-one thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 1103 2206 3309 4412 6618 13236 29917 59834 89751 119668 179502 359004 32998451 65996902 98995353 131993804 197990706 395981412