Search a number
-
+
30212608025 = 521208504321
BaseRepresentation
bin11100001000110011…
…111101000000011001
32212222120100111202102
4130020303331000121
5443333411424100
621513545013145
72116460634215
oct341063750031
985876314672
1030212608025
11118a4258646
125a321841b5
132b06445072
14166878d945
15bbc623cd5
hex708cfd019

30212608025 has 6 divisors (see below), whose sum is σ = 37463633982. Its totient is φ = 24170086400.

The previous prime is 30212608021. The next prime is 30212608031. The reversal of 30212608025 is 52080621203.

It can be written as a sum of positive squares in 3 ways, for example, as 3607083481 + 26605524544 = 60059^2 + 163112^2 .

It is not a de Polignac number, because 30212608025 - 22 = 30212608021 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30212608021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 604252136 + ... + 604252185.

It is an arithmetic number, because the mean of its divisors is an integer number (6243938997).

Almost surely, 230212608025 is an apocalyptic number.

It is an amenable number.

30212608025 is a deficient number, since it is larger than the sum of its proper divisors (7251025957).

30212608025 is a wasteful number, since it uses less digits than its factorization.

30212608025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208504331 (or 1208504326 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The spelling of 30212608025 in words is "thirty billion, two hundred twelve million, six hundred eight thousand, twenty-five".

Divisors: 1 5 25 1208504321 6042521605 30212608025