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30738012552 = 233213313728631
BaseRepresentation
bin11100101000001000…
…001101100110001000
32221100011222211021100
4130220020031212020
51000422412400202
622042034141400
72135500536642
oct345010154610
987304884240
1030738012552
1112043896865
125b5a121860
132b8b253510
1416b8479892
15bed80941c
hex72820d988

30738012552 has 192 divisors, whose sum is σ = 95049077760. Its totient is φ = 8905075200.

The previous prime is 30738012551. The next prime is 30738012563. The reversal of 30738012552 is 25521083703.

It is a happy number.

30738012552 is a `hidden beast` number, since 30 + 73 + 8 + 0 + 1 + 2 + 552 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (30738012551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1059277 + ... + 1087907.

It is an arithmetic number, because the mean of its divisors is an integer number (495047280).

Almost surely, 230738012552 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 30738012552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47524538880).

30738012552 is an abundant number, since it is smaller than the sum of its proper divisors (64311065208).

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

30738012552 is a wasteful number, since it uses less digits than its factorization.

30738012552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28724 (or 28717 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The spelling of 30738012552 in words is "thirty billion, seven hundred thirty-eight million, twelve thousand, five hundred fifty-two".