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30055612 = 2259312671
BaseRepresentation
bin111001010100…
…1110010111100
32002112222112211
41302221302330
530143234422
62552110204
7513316456
oct162516274
962488484
1030055612
1115a69254
12a095364
1362c43b2
143dc52d6
15298a577
hex1ca9cbc

30055612 has 12 divisors (see below), whose sum is σ = 52690176. Its totient is φ = 15001280.

The previous prime is 30055601. The next prime is 30055621. The reversal of 30055612 is 21655003.

It is a happy number.

It is a congruent number.

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, 3964 + ... + 8707.

It is an arithmetic number, because the mean of its divisors is an integer number (4390848).

Almost surely, 230055612 is an apocalyptic number.

It is an amenable number.

30055612 is a deficient number, since it is larger than the sum of its proper divisors (22634564).

30055612 is a wasteful number, since it uses less digits than its factorization.

30055612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13268 (or 13266 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 30055612 is about 5482.2998823486. The cubic root of 30055612 is about 310.9151314279.

The spelling of 30055612 in words is "thirty million, fifty-five thousand, six hundred twelve".

Divisors: 1 2 4 593 1186 2372 12671 25342 50684 7513903 15027806 30055612