Search a number
-
+
30415752017 = 721217510049
BaseRepresentation
bin11100010100111010…
…111000101101010001
32220111201121021220222
4130110322320231101
5444242413031032
621550043042425
72124505424600
oct342472705521
986451537828
1030415752017
1111998998742
125a8a210415
132b39560401
14168774da37
15bd039ea12
hex714eb8b51

30415752017 has 12 divisors (see below), whose sum is σ = 35410731300. Its totient is φ = 26049171456.

The previous prime is 30415752013. The next prime is 30415752071. The reversal of 30415752017 is 71025751403.

It can be written as a sum of positive squares in 2 ways, for example, as 12367441681 + 18048310336 = 111209^2 + 134344^2 .

It is not a de Polignac number, because 30415752017 - 22 = 30415752013 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30415752013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 195392 + ... + 314657.

It is an arithmetic number, because the mean of its divisors is an integer number (2950894275).

Almost surely, 230415752017 is an apocalyptic number.

It is an amenable number.

30415752017 is a deficient number, since it is larger than the sum of its proper divisors (4994979283).

30415752017 is a wasteful number, since it uses less digits than its factorization.

30415752017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511280 (or 511273 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 35.

The spelling of 30415752017 in words is "thirty billion, four hundred fifteen million, seven hundred fifty-two thousand, seventeen".

Divisors: 1 7 49 1217 8519 59633 510049 3570343 24992401 620729633 4345107431 30415752017