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30312010100 = 2252303120101
BaseRepresentation
bin11100001110101111…
…001001000101110100
32220020111101122202202
4130032233021011310
5444034333310400
621531455324032
72122105556201
oct341657110564
986214348682
1030312010100
1111945380919
125a5b520618
132b20c09668
141677a66ca8
15bc620b4d5
hex70ebc9174

30312010100 has 18 divisors (see below), whose sum is σ = 65777062134. Its totient is φ = 12124804000.

The previous prime is 30312010073. The next prime is 30312010147. The reversal of 30312010100 is 101021303.

It can be written as a sum of positive squares in 3 ways, for example, as 781649764 + 29530360336 = 27958^2 + 171844^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 151559951 + ... + 151560150.

Almost surely, 230312010100 is an apocalyptic number.

It is an amenable number.

30312010100 is an abundant number, since it is smaller than the sum of its proper divisors (35465052034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30312010100 is a wasteful number, since it uses less digits than its factorization.

30312010100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303120115 (or 303120108 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 30312010100 its reverse (101021303), we get a palindrome (30413031403).

The spelling of 30312010100 in words is "thirty billion, three hundred twelve million, ten thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 303120101 606240202 1212480404 1515600505 3031201010 6062402020 7578002525 15156005050 30312010100