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30682581384 = 233713397857
BaseRepresentation
bin11100100100110100…
…110000100110001000
32221012022200122000010
4130210310300212020
51000314220101014
622032334111520
72134225432020
oct344464604610
987168618003
1030682581384
1112015576584
125b4364b5a0
132b7c916000
1416b0d6aa80
15be8a0a359
hex724d30988

30682581384 has 256 divisors, whose sum is σ = 96057561600. Its totient is φ = 7999340544.

The previous prime is 30682581367. The next prime is 30682581437. The reversal of 30682581384 is 48318528603.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 35801884 + ... + 35802740.

It is an arithmetic number, because the mean of its divisors is an integer number (375224850).

Almost surely, 230682581384 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 30682581384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48028780800).

30682581384 is an abundant number, since it is smaller than the sum of its proper divisors (65374980216).

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

30682581384 is a wasteful number, since it uses less digits than its factorization.

30682581384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009 (or 979 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 48.

The spelling of 30682581384 in words is "thirty billion, six hundred eighty-two million, five hundred eighty-one thousand, three hundred eighty-four".