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30970793 = 724314699
BaseRepresentation
bin111011000100…
…1001110101001
32011021110221102
41312021032221
530412031133
63023451145
7524150600
oct166111651
964243842
1030970793
11165338a7
12a456ab5
136554b19
144182a37
152abb7e8
hex1d893a9

30970793 has 12 divisors (see below), whose sum is σ = 36867600. Its totient is φ = 25927272.

The previous prime is 30970783. The next prime is 30970837. The reversal of 30970793 is 39707903.

It is not a de Polignac number, because 30970793 - 216 = 30905257 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30970783) 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 11 ways as a sum of consecutive naturals, for example, 5243 + ... + 9456.

It is an arithmetic number, because the mean of its divisors is an integer number (3072300).

Almost surely, 230970793 is an apocalyptic number.

It is an amenable number.

30970793 is a deficient number, since it is larger than the sum of its proper divisors (5896807).

30970793 is a wasteful number, since it uses less digits than its factorization.

30970793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14756 (or 14749 counting only the distinct ones).

The product of its (nonzero) digits is 35721, while the sum is 38.

The square root of 30970793 is about 5565.1408787200. The cubic root of 30970793 is about 314.0393779979.

The spelling of 30970793 in words is "thirty million, nine hundred seventy thousand, seven hundred ninety-three".

Divisors: 1 7 43 49 301 2107 14699 102893 632057 720251 4424399 30970793