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30967916 = 2271105997
BaseRepresentation
bin111011000100…
…0100001101100
32011021022222212
41312020201230
530411433131
63023425552
7524136320
oct166104154
964238885
1030967916
1116531721
12a4552b8
136553715
144181980
152abaa2b
hex1d8886c

30967916 has 12 divisors (see below), whose sum is σ = 61935888. Its totient is φ = 13271952.

The previous prime is 30967889. The next prime is 30967919. The reversal of 30967916 is 61976903.

It is a happy number.

30967916 is an admirable number.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (30967919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552971 + ... + 553026.

It is an arithmetic number, because the mean of its divisors is an integer number (5161324).

Almost surely, 230967916 is an apocalyptic number.

It is an amenable number.

30967916 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30967916 is a wasteful number, since it uses less digits than its factorization.

30967916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106008 (or 1106006 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 30967916 is about 5564.8823886943. The cubic root of 30967916 is about 314.0296535750.

The spelling of 30967916 in words is "thirty million, nine hundred sixty-seven thousand, nine hundred sixteen".

Divisors: 1 2 4 7 14 28 1105997 2211994 4423988 7741979 15483958 30967916