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30259637968 = 2472172979991
BaseRepresentation
bin11100001011100111…
…010110111011010000
32220002211211212201011
4130023213112323100
5443432431403333
621522345020304
72120601451600
oct341347267320
986084755634
1030259637968
111191885a96a
125a45a84694
132b13100631
141670b12c00
15bc18139cd
hex70b9d6ed0

30259637968 has 240 divisors, whose sum is σ = 75723724800. Its totient is φ = 11623772160.

The previous prime is 30259637869. The next prime is 30259637987. The reversal of 30259637968 is 86973695203.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30533953 + ... + 30534943.

It is an arithmetic number, because the mean of its divisors is an integer number (315515520).

Almost surely, 230259637968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30259637968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37861862400).

30259637968 is an abundant number, since it is smaller than the sum of its proper divisors (45464086832).

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

30259637968 is a wasteful number, since it uses less digits than its factorization.

30259637968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138 (or 1125 counting only the distinct ones).

The product of its (nonzero) digits is 14696640, while the sum is 58.

The spelling of 30259637968 in words is "thirty billion, two hundred fifty-nine million, six hundred thirty-seven thousand, nine hundred sixty-eight".