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30509888084 = 22132953198689
BaseRepresentation
bin11100011010100001…
…111111001001010100
32220202021201220022222
4130122201333021110
5444441012404314
622003244441512
72130030525014
oct343241771124
986667656288
1030509888084
1111a37044545
125ab5849298
132b52bccb20
141696055c44
15bd8796c8e
hex71a87f254

30509888084 has 24 divisors (see below), whose sum is σ = 57519165480. Its totient is φ = 14076647424.

The previous prime is 30509888063. The next prime is 30509888093. The reversal of 30509888084 is 48088890503.

It can be written as a sum of positive squares in 4 ways, for example, as 1326999184 + 29182888900 = 36428^2 + 170830^2 .

It is a super-3 number, since 3×305098880843 (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54212 + ... + 252900.

It is an arithmetic number, because the mean of its divisors is an integer number (2396631895).

Almost surely, 230509888084 is an apocalyptic number.

It is an amenable number.

30509888084 is a deficient number, since it is larger than the sum of its proper divisors (27009277396).

30509888084 is a wasteful number, since it uses less digits than its factorization.

30509888084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201659 (or 201657 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 53.

The spelling of 30509888084 in words is "thirty billion, five hundred nine million, eight hundred eighty-eight thousand, eighty-four".

Divisors: 1 2 4 13 26 52 2953 5906 11812 38389 76778 153556 198689 397378 794756 2582957 5165914 10331828 586728617 1173457234 2346914468 7627472021 15254944042 30509888084