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30394806 = 2313478291
BaseRepresentation
bin111001111110…
…0100110110110
32010012012211120
41303330212312
530240113211
63003244410
7516231411
oct163744666
963165746
1030394806
1116180082
12a219706
1363b28c0
144072b78
152a05d06
hex1cfc9b6

30394806 has 32 divisors (see below), whose sum is σ = 66866688. Its totient is φ = 9152160.

The previous prime is 30394789. The next prime is 30394807. The reversal of 30394806 is 60849303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30394807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 480 + ... + 7811.

It is an arithmetic number, because the mean of its divisors is an integer number (2089584).

Almost surely, 230394806 is an apocalyptic number.

30394806 is an abundant number, since it is smaller than the sum of its proper divisors (36471882).

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

30394806 is a wasteful number, since it uses less digits than its factorization.

30394806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8356.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 30394806 is about 5513.1484652601. The cubic root of 30394806 is about 312.0803745920.

The spelling of 30394806 in words is "thirty million, three hundred ninety-four thousand, eight hundred six".

Divisors: 1 2 3 6 13 26 39 47 78 94 141 282 611 1222 1833 3666 8291 16582 24873 49746 107783 215566 323349 389677 646698 779354 1169031 2338062 5065801 10131602 15197403 30394806