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30825474 = 23231391607
BaseRepresentation
bin111010110010…
…1110000000010
32011000002121020
41311211300002
530342403344
63020410310
7523004121
oct165456002
964002536
1030825474
11164446a9
12a3a6996
136503934
144145ab8
152a8d719
hex1d65c02

30825474 has 32 divisors (see below), whose sum is σ = 64834560. Its totient is φ = 9751632.

The previous prime is 30825469. The next prime is 30825511. The reversal of 30825474 is 47452803.

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 15 ways as a sum of consecutive naturals, for example, 18379 + ... + 19985.

It is an arithmetic number, because the mean of its divisors is an integer number (2026080).

Almost surely, 230825474 is an apocalyptic number.

30825474 is an abundant number, since it is smaller than the sum of its proper divisors (34009086).

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

30825474 is a wasteful number, since it uses less digits than its factorization.

30825474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774.

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 30825474 is about 5552.0693439474. The cubic root of 30825474 is about 313.5474365363.

The spelling of 30825474 in words is "thirty million, eight hundred twenty-five thousand, four hundred seventy-four".

Divisors: 1 2 3 6 23 46 69 138 139 278 417 834 1607 3197 3214 4821 6394 9591 9642 19182 36961 73922 110883 221766 223373 446746 670119 1340238 5137579 10275158 15412737 30825474