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30696842 = 2112236257
BaseRepresentation
bin111010100011…
…0010110001010
32010202120011002
41311012112022
530324244332
63013535002
7521630111
oct165062612
963676132
1030696842
1116366aa0
12a344462
13648a217
144110c78
152a65562
hex1d4658a

30696842 has 16 divisors (see below), whose sum is σ = 50464512. Its totient is φ = 13888320.

The previous prime is 30696839. The next prime is 30696857. The reversal of 30696842 is 24869603.

It is a super-2 number, since 2×306968422 = 1884592217545928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30696796 and 30696805.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1778 + ... + 8034.

It is an arithmetic number, because the mean of its divisors is an integer number (3154032).

Almost surely, 230696842 is an apocalyptic number.

30696842 is a deficient number, since it is larger than the sum of its proper divisors (19767670).

30696842 is a wasteful number, since it uses less digits than its factorization.

30696842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6493.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 30696842 is about 5540.4730844938. The cubic root of 30696842 is about 313.1106931550.

The spelling of 30696842 in words is "thirty million, six hundred ninety-six thousand, eight hundred forty-two".

Divisors: 1 2 11 22 223 446 2453 4906 6257 12514 68827 137654 1395311 2790622 15348421 30696842