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30195324651 = 310065108217
BaseRepresentation
bin11100000111110010…
…000001011011101011
32212221100211102102110
4130013302001123223
5443320000342101
621512130333403
72116161011322
oct340762013353
985840742373
1030195324651
1111895523368
125a2842a263
132b029a330b
1416663710b9
15bbad5ccd6
hex707c816eb

30195324651 has 4 divisors (see below), whose sum is σ = 40260432872. Its totient is φ = 20130216432.

The previous prime is 30195324637. The next prime is 30195324659. The reversal of 30195324651 is 15642359103.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 30195324651 - 215 = 30195291883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30195324659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5032554106 + ... + 5032554111.

It is an arithmetic number, because the mean of its divisors is an integer number (10065108218).

Almost surely, 230195324651 is an apocalyptic number.

30195324651 is a deficient number, since it is larger than the sum of its proper divisors (10065108221).

30195324651 is a wasteful number, since it uses less digits than its factorization.

30195324651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10065108220.

The product of its (nonzero) digits is 97200, while the sum is 39.

The spelling of 30195324651 in words is "thirty billion, one hundred ninety-five million, three hundred twenty-four thousand, six hundred fifty-one".

Divisors: 1 3 10065108217 30195324651