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30948474 = 237172649
BaseRepresentation
bin111011000001…
…1110001111010
32011020100022210
41312003301322
530410322344
63023155550
7524025534
oct166036172
964210283
1030948474
1116519057
12a445bb6
13654790b
144178854
152ab4db9
hex1d83c7a

30948474 has 16 divisors (see below), whose sum is σ = 62769600. Its totient is φ = 10170720.

The previous prime is 30948469. The next prime is 30948493. The reversal of 30948474 is 47484903.

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, 35899 + ... + 36750.

It is an arithmetic number, because the mean of its divisors is an integer number (3923100).

Almost surely, 230948474 is an apocalyptic number.

30948474 is an abundant number, since it is smaller than the sum of its proper divisors (31821126).

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

30948474 is a wasteful number, since it uses less digits than its factorization.

30948474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72725.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 30948474 is about 5563.1352670953. The cubic root of 30948474 is about 313.9639227216.

The spelling of 30948474 in words is "thirty million, nine hundred forty-eight thousand, four hundred seventy-four".

Divisors: 1 2 3 6 71 142 213 426 72649 145298 217947 435894 5158079 10316158 15474237 30948474