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30530684800 = 2752721131571
BaseRepresentation
bin11100011011110001…
…010100011110000000
32220210201212111001201
4130123301110132000
51000011323403200
622005310310544
72130402352600
oct343361243600
986721774051
1030530684800
1111a47859410
125b007b8454
132b57301a85
141698b0ac00
15bda503c6a
hex71bc54780

30530684800 has 576 divisors, whose sum is σ = 98970094080. Its totient is φ = 9192960000.

The previous prime is 30530684777. The next prime is 30530684813. The reversal of 30530684800 is 848603503.

It is a self number, because there is not a number n which added to its sum of digits gives 30530684800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 53468515 + ... + 53469085.

It is an arithmetic number, because the mean of its divisors is an integer number (171823080).

Almost surely, 230530684800 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 30530684800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49485047040).

30530684800 is an abundant number, since it is smaller than the sum of its proper divisors (68439409280).

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

30530684800 is a wasteful number, since it uses less digits than its factorization.

30530684800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 30530684800 in words is "thirty billion, five hundred thirty million, six hundred eighty-four thousand, eight hundred".