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30518941824 = 27327171911717
BaseRepresentation
bin11100011011000100…
…100001100010000000
32220202220202212201200
4130123010201202000
51000000322114244
622004210501200
72130200503530
oct343304414200
986686685650
1030518941824
1111a41168778
125ab8894800
132b54a4ca77
1416973314c0
15bd9484669
hex71b121880

30518941824 has 384 divisors, whose sum is σ = 111874089600. Its totient is φ = 7774175232.

The previous prime is 30518941813. The next prime is 30518941847. The reversal of 30518941824 is 42814981503.

30518941824 is a `hidden beast` number, since 30 + 5 + 189 + 418 + 24 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a self number, because there is not a number n which added to its sum of digits gives 30518941824.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2598814 + ... + 2610530.

It is an arithmetic number, because the mean of its divisors is an integer number (291338775).

Almost surely, 230518941824 is an apocalyptic number.

30518941824 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30518941824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55937044800).

30518941824 is an abundant number, since it is smaller than the sum of its proper divisors (81355147776).

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

30518941824 is a wasteful number, since it uses less digits than its factorization.

30518941824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11780 (or 11765 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 30518941824 in words is "thirty billion, five hundred eighteen million, nine hundred forty-one thousand, eight hundred twenty-four".