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30979204 = 2247367449
BaseRepresentation
bin111011000101…
…1010010000100
32011021220110221
41312023102010
530412313304
63023554124
7524214244
oct166132204
964256427
1030979204
111653a153
12a45b944
1365588b9
144185b24
152abe054
hex1d8b484

30979204 has 24 divisors (see below), whose sum is σ = 55641600. Its totient is φ = 15085056.

The previous prime is 30979159. The next prime is 30979213. The reversal of 30979204 is 40297903.

It is a super-2 number, since 2×309792042 = 1919422160947232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30979204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68772 + ... + 69220.

It is an arithmetic number, because the mean of its divisors is an integer number (2318400).

Almost surely, 230979204 is an apocalyptic number.

It is an amenable number.

30979204 is a deficient number, since it is larger than the sum of its proper divisors (24662396).

30979204 is a wasteful number, since it uses less digits than its factorization.

30979204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867 (or 865 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 30979204 is about 5565.8965135906. The cubic root of 30979204 is about 314.0678042007.

The spelling of 30979204 in words is "thirty million, nine hundred seventy-nine thousand, two hundred four".

Divisors: 1 2 4 47 94 188 367 449 734 898 1468 1796 17249 21103 34498 42206 68996 84412 164783 329566 659132 7744801 15489602 30979204