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30993736964 = 2241475577219
BaseRepresentation
bin11100110111010111…
…101110010100000100
32222000000011222012212
4130313113232110010
51001433344040324
622123251202552
72145024263111
oct346727562404
988000158185
1030993736964
111216517a353
12600b8a6458
132bcc21b638
141700405908
15c15ebe70e
hex7375ee504

30993736964 has 48 divisors (see below), whose sum is σ = 56853861120. Its totient is φ = 14768605440.

The previous prime is 30993736933. The next prime is 30993736967. The reversal of 30993736964 is 46963739903.

It is a super-2 number, since 2×309937369642 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30993736967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4289747 + ... + 4296965.

It is an arithmetic number, because the mean of its divisors is an integer number (1184455440).

Almost surely, 230993736964 is an apocalyptic number.

It is an amenable number.

30993736964 is a deficient number, since it is larger than the sum of its proper divisors (25860124156).

30993736964 is a wasteful number, since it uses less digits than its factorization.

30993736964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7868 (or 7866 counting only the distinct ones).

The product of its (nonzero) digits is 19840464, while the sum is 59.

The spelling of 30993736964 in words is "thirty billion, nine hundred ninety-three million, seven hundred thirty-six thousand, nine hundred sixty-four".

Divisors: 1 2 4 41 47 82 94 164 188 557 1114 1927 2228 3854 7219 7708 14438 22837 26179 28876 45674 52358 91348 104716 295979 339293 591958 678586 1073339 1183916 1357172 2146678 4020983 4293356 8041966 13911013 16083932 27822026 55644052 164860303 188986201 329720606 377972402 659441212 755944804 7748434241 15496868482 30993736964