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30925896 = 2337118149
BaseRepresentation
bin111010111111…
…0010001001000
32011012012100120
41311332101020
530404112041
63022503240
7523602651
oct165762110
964165316
1030925896
11165030a1
12a434b20
13653a561
144170528
152aad366
hex1d7e448

30925896 has 32 divisors (see below), whose sum is σ = 78408000. Its totient is φ = 10162880.

The previous prime is 30925847. The next prime is 30925913. The reversal of 30925896 is 69852903.

It is a super-2 number, since 2×309258962 = 1912822086805632, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7371 + ... + 10778.

It is an arithmetic number, because the mean of its divisors is an integer number (2450250).

Almost surely, 230925896 is an apocalyptic number.

It is an amenable number.

30925896 is an abundant number, since it is smaller than the sum of its proper divisors (47482104).

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

30925896 is a wasteful number, since it uses less digits than its factorization.

30925896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18229 (or 18225 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 30925896 is about 5561.1056454630. The cubic root of 30925896 is about 313.8875549071.

The spelling of 30925896 in words is "thirty million, nine hundred twenty-five thousand, eight hundred ninety-six".

Divisors: 1 2 3 4 6 8 12 24 71 142 213 284 426 568 852 1704 18149 36298 54447 72596 108894 145192 217788 435576 1288579 2577158 3865737 5154316 7731474 10308632 15462948 30925896