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30794013 = 341033691
BaseRepresentation
bin111010101111…
…0000100011101
32010221111110000
41311132010131
530340402023
63020004513
7522513315
oct165360435
963844400
1030794013
1116422aa8
12a390739
1364c2513
144138445
152a84243
hex1d5e11d

30794013 has 20 divisors (see below), whose sum is σ = 46460128. Its totient is φ = 20324520.

The previous prime is 30794011. The next prime is 30794017. The reversal of 30794013 is 31049703.

It is not a de Polignac number, because 30794013 - 21 = 30794011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30794011) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6498 + ... + 10188.

Almost surely, 230794013 is an apocalyptic number.

It is an amenable number.

30794013 is a deficient number, since it is larger than the sum of its proper divisors (15666115).

30794013 is a wasteful number, since it uses less digits than its factorization.

30794013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3806 (or 3797 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 30794013 is about 5549.2353527310. The cubic root of 30794013 is about 313.4407296206.

The spelling of 30794013 in words is "thirty million, seven hundred ninety-four thousand, thirteen".

Divisors: 1 3 9 27 81 103 309 927 2781 3691 8343 11073 33219 99657 298971 380173 1140519 3421557 10264671 30794013