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30768966 = 2321709387
BaseRepresentation
bin111010101011…
…1111101000110
32010220020002100
41311113331012
530334101331
63015252530
7522350304
oct165277506
963806070
1030768966
11164061a8
12a37a146
1364b3cb7
14412d274
152a7bae6
hex1d57f46

30768966 has 12 divisors (see below), whose sum is σ = 66666132. Its totient is φ = 10256316.

The previous prime is 30768937. The next prime is 30769001. The reversal of 30768966 is 66986703.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 854676 + ... + 854711.

It is an arithmetic number, because the mean of its divisors is an integer number (5555511).

Almost surely, 230768966 is an apocalyptic number.

30768966 is an abundant number, since it is smaller than the sum of its proper divisors (35897166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30768966 is a wasteful number, since it uses less digits than its factorization.

30768966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1709395 (or 1709392 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 30768966 is about 5546.9780962250. The cubic root of 30768966 is about 313.3557252244.

The spelling of 30768966 in words is "thirty million, seven hundred sixty-eight thousand, nine hundred sixty-six".

Divisors: 1 2 3 6 9 18 1709387 3418774 5128161 10256322 15384483 30768966