Search a number
-
+
30306730667 = 145320858039
BaseRepresentation
bin11100001110011011…
…000000001010101011
32220020010110102202012
4130032123000022223
5444032010340132
621531150230135
72122012650233
oct341633001253
986203412665
1030306730667
11119423a5354
125a597b534b
132b1caab635
141677090cc3
15bc5a170b2
hex70e6c02ab

30306730667 has 4 divisors (see below), whose sum is σ = 30327590160. Its totient is φ = 30285871176.

The previous prime is 30306730661. The next prime is 30306730693. The reversal of 30306730667 is 76603760303.

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

It is a cyclic number.

It is not a de Polignac number, because 30306730667 - 28 = 30306730411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30306730661) 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, 10427567 + ... + 10430472.

It is an arithmetic number, because the mean of its divisors is an integer number (7581897540).

Almost surely, 230306730667 is an apocalyptic number.

30306730667 is a deficient number, since it is larger than the sum of its proper divisors (20859493).

30306730667 is a wasteful number, since it uses less digits than its factorization.

30306730667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20859492.

The product of its (nonzero) digits is 285768, while the sum is 41.

The spelling of 30306730667 in words is "thirty billion, three hundred six million, seven hundred thirty thousand, six hundred sixty-seven".

Divisors: 1 1453 20858039 30306730667