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30682695680 = 2115713191733
BaseRepresentation
bin11100100100110101…
…001100100000000000
32221012022220102210022
4130210311030200000
51000314232230210
622032340353012
72134226416160
oct344465144000
987168812708
1030682695680
111201564443a
125b436a5768
132b7c956040
1416b0d9a5a0
15be8a2e155
hex724d4c800

30682695680 has 384 divisors, whose sum is σ = 95433811200. Its totient is φ = 9194176512.

The previous prime is 30682695649. The next prime is 30682695707. The reversal of 30682695680 is 8659628603.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17704094 + ... + 17705826.

It is an arithmetic number, because the mean of its divisors is an integer number (248525550).

Almost surely, 230682695680 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 30682695680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47716905600).

30682695680 is an abundant number, since it is smaller than the sum of its proper divisors (64751115520).

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

30682695680 is a wasteful number, since it uses less digits than its factorization.

30682695680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1799 (or 1779 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 53.

The spelling of 30682695680 in words is "thirty billion, six hundred eighty-two million, six hundred ninety-five thousand, six hundred eighty".