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30330937 = 713225639
BaseRepresentation
bin111001110110…
…1000000111001
32010001222020001
41303231000321
530231042222
63002033001
7515544250
oct163550071
963058201
1030330937
111613709a
12a1a8761
13638c800
144057797
1529e1e27
hex1ced039

30330937 has 12 divisors (see below), whose sum is σ = 37536960. Its totient is φ = 23997168.

The previous prime is 30330931. The next prime is 30330947. The reversal of 30330937 is 73903303.

It is a de Polignac number, because none of the positive numbers 2k-30330937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30330931) 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, 11637 + ... + 14002.

It is an arithmetic number, because the mean of its divisors is an integer number (3128080).

Almost surely, 230330937 is an apocalyptic number.

It is an amenable number.

30330937 is a deficient number, since it is larger than the sum of its proper divisors (7206023).

30330937 is a wasteful number, since it uses less digits than its factorization.

30330937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25672 (or 25659 counting only the distinct ones).

The product of its (nonzero) digits is 5103, while the sum is 28.

The square root of 30330937 is about 5507.3529939527. The cubic root of 30330937 is about 311.8616284563.

The spelling of 30330937 in words is "thirty million, three hundred thirty thousand, nine hundred thirty-seven".

Divisors: 1 7 13 91 169 1183 25639 179473 333307 2333149 4332991 30330937