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30913384 = 239833931
BaseRepresentation
bin111010111101…
…1001101101000
32011011120012011
41311323031220
530403212014
63022325304
7523521325
oct165731550
964146164
1030913384
11164a4757
12a429834
136534958
144169b4c
152aa97c4
hex1d7b368

30913384 has 16 divisors (see below), whose sum is σ = 58036320. Its totient is φ = 15437040.

The previous prime is 30913343. The next prime is 30913427. The reversal of 30913384 is 48331903.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5899 + ... + 9829.

It is an arithmetic number, because the mean of its divisors is an integer number (3627270).

Almost surely, 230913384 is an apocalyptic number.

It is an amenable number.

30913384 is a deficient number, since it is larger than the sum of its proper divisors (27122936).

30913384 is a wasteful number, since it uses less digits than its factorization.

30913384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4920 (or 4916 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 30913384 is about 5559.9805755056. The cubic root of 30913384 is about 313.8452183181.

The spelling of 30913384 in words is "thirty million, nine hundred thirteen thousand, three hundred eighty-four".

Divisors: 1 2 4 8 983 1966 3931 3932 7862 7864 15724 31448 3864173 7728346 15456692 30913384