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30934955 = 516337957
BaseRepresentation
bin111011000000…
…0011110101011
32011012122210002
41312000132223
530404404310
63023013215
7523641242
oct166003653
964178702
1030934955
1116509987
12a43a20b
13654170c
144173959
152ab0da5
hex1d807ab

30934955 has 8 divisors (see below), whose sum is σ = 37350672. Its totient is φ = 24595488.

The previous prime is 30934919. The next prime is 30934957. The reversal of 30934955 is 55943903.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30934955 - 212 = 30930859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30934957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18164 + ... + 19793.

It is an arithmetic number, because the mean of its divisors is an integer number (4668834).

Almost surely, 230934955 is an apocalyptic number.

30934955 is a deficient number, since it is larger than the sum of its proper divisors (6415717).

30934955 is a wasteful number, since it uses less digits than its factorization.

30934955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38125.

The product of its (nonzero) digits is 72900, while the sum is 38.

The square root of 30934955 is about 5561.9200821299. The cubic root of 30934955 is about 313.9182005270.

The spelling of 30934955 in words is "thirty million, nine hundred thirty-four thousand, nine hundred fifty-five".

Divisors: 1 5 163 815 37957 189785 6186991 30934955