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30933852 = 2232577821
BaseRepresentation
bin111011000000…
…0001101011100
32011012121021020
41312000031130
530404340402
63023004140
7523635105
oct166001534
964177236
1030933852
1116509074
12a439650
136541071
1441733ac
152ab08bc
hex1d8035c

30933852 has 12 divisors (see below), whose sum is σ = 72179016. Its totient is φ = 10311280.

The previous prime is 30933841. The next prime is 30933853. The reversal of 30933852 is 25833903.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30933853) 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, 1288899 + ... + 1288922.

It is an arithmetic number, because the mean of its divisors is an integer number (6014918).

Almost surely, 230933852 is an apocalyptic number.

It is an amenable number.

30933852 is an abundant number, since it is smaller than the sum of its proper divisors (41245164).

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

30933852 is a wasteful number, since it uses less digits than its factorization.

30933852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2577828 (or 2577826 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 30933852 is about 5561.8209248411. The cubic root of 30933852 is about 313.9144695169.

The spelling of 30933852 in words is "thirty million, nine hundred thirty-three thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 12 2577821 5155642 7733463 10311284 15466926 30933852