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30090844800 = 2732522345427
BaseRepresentation
bin11100000001100011…
…011101101010000000
32212200002020022000100
4130001203131222000
5443111224013200
621453515122400
72113451650332
oct340143355200
985602208010
1030090844800
1111841552085
1259b9443400
132ab7151713
141656535452
15bb1ac0d00
hex7018dda80

30090844800 has 288 divisors, whose sum is σ = 112041802080. Its totient is φ = 7675176960.

The previous prime is 30090844789. The next prime is 30090844813. The reversal of 30090844800 is 844809003.

It is a tau number, because it is divible by the number of its divisors (288).

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

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 639687 + ... + 685113.

It is an arithmetic number, because the mean of its divisors is an integer number (389034035).

Almost surely, 230090844800 is an apocalyptic number.

30090844800 is a gapful number since it is divisible by the number (30) 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 30090844800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56020901040).

30090844800 is an abundant number, since it is smaller than the sum of its proper divisors (81950957280).

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

30090844800 is a wasteful number, since it uses less digits than its factorization.

30090844800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45480 (or 45460 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The spelling of 30090844800 in words is "thirty billion, ninety million, eight hundred forty-four thousand, eight hundred".