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30796156 = 2211516689
BaseRepresentation
bin111010101111…
…0100101111100
32010221121101101
41311132211330
530340434111
63020022444
7522522466
oct165364574
963847341
1030796156
1116424676
12a391a24
1364c34a1
144139136
152a84bc1
hex1d5e97c

30796156 has 12 divisors (see below), whose sum is σ = 53948160. Its totient is φ = 15382400.

The previous prime is 30796147. The next prime is 30796159. The reversal of 30796156 is 65169703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30796159) 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, 1260 + ... + 7948.

It is an arithmetic number, because the mean of its divisors is an integer number (4495680).

Almost surely, 230796156 is an apocalyptic number.

It is an amenable number.

30796156 is a deficient number, since it is larger than the sum of its proper divisors (23152004).

30796156 is a wasteful number, since it uses less digits than its factorization.

30796156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7844 (or 7842 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 30796156 is about 5549.4284390377. The cubic root of 30796156 is about 313.4480003835.

The spelling of 30796156 in words is "thirty million, seven hundred ninety-six thousand, one hundred fifty-six".

Divisors: 1 2 4 1151 2302 4604 6689 13378 26756 7699039 15398078 30796156