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30131285718 = 235021880953
BaseRepresentation
bin11100000011111101…
…101110111011010110
32212202220022220112010
4130003331232323112
5443202102120333
621501522005050
72114452463022
oct340375567326
985686286463
1030131285718
1111862363a26
125a0aaa6786
132ac2640b61
14165ba61382
15bb540d563
hex703f6eed6

30131285718 has 8 divisors (see below), whose sum is σ = 60262571448. Its totient is φ = 10043761904.

The previous prime is 30131285689. The next prime is 30131285731. The reversal of 30131285718 is 81758213103.

It is a sphenic number, since it is the product of 3 distinct primes.

30131285718 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2510940471 + ... + 2510940482.

It is an arithmetic number, because the mean of its divisors is an integer number (7532821431).

Almost surely, 230131285718 is an apocalyptic number.

30131285718 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30131285718 is a wasteful number, since it uses less digits than its factorization.

30131285718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5021880958.

The product of its (nonzero) digits is 40320, while the sum is 39.

The spelling of 30131285718 in words is "thirty billion, one hundred thirty-one million, two hundred eighty-five thousand, seven hundred eighteen".

Divisors: 1 2 3 6 5021880953 10043761906 15065642859 30131285718