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30853492 = 2219405967
BaseRepresentation
bin111010110110…
…0100101110100
32011001112000221
41311230211310
530344302432
63021144124
7523151605
oct165544564
964045027
1030853492
111646375a
12a3bb044
136513607
144151dac
152a96b97
hex1d6c974

30853492 has 12 divisors (see below), whose sum is σ = 56835520. Its totient is φ = 14614776.

The previous prime is 30853481. The next prime is 30853499. The reversal of 30853492 is 29435803.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30853499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202908 + ... + 203059.

Almost surely, 230853492 is an apocalyptic number.

It is an amenable number.

30853492 is a deficient number, since it is larger than the sum of its proper divisors (25982028).

30853492 is a wasteful number, since it uses less digits than its factorization.

30853492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405990 (or 405988 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 30853492 is about 5554.5919742138. The cubic root of 30853492 is about 313.6424046547.

The spelling of 30853492 in words is "thirty million, eight hundred fifty-three thousand, four hundred ninety-two".

Divisors: 1 2 4 19 38 76 405967 811934 1623868 7713373 15426746 30853492