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30300072672 = 25317233132579
BaseRepresentation
bin11100001110000001…
…100110101011100000
32220012122221011200210
4130032001212223200
5444023304311142
621530351414120
72121602240202
oct341601465340
986178834623
1030300072672
1111939668081
125a57524340
132b1b5b9cac
14167623a772
15bc514e49c
hex70e066ae0

30300072672 has 192 divisors, whose sum is σ = 88192903680. Its totient is φ = 9060040704.

The previous prime is 30300072667. The next prime is 30300072707. The reversal of 30300072672 is 27627000303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11747479 + ... + 11750057.

It is an arithmetic number, because the mean of its divisors is an integer number (459338040).

Almost surely, 230300072672 is an apocalyptic number.

30300072672 is a gapful number since it is divisible by the number (32) 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 30300072672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44096451840).

30300072672 is an abundant number, since it is smaller than the sum of its proper divisors (57892831008).

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

30300072672 is a wasteful number, since it uses less digits than its factorization.

30300072672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2945 (or 2937 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 30.

Adding to 30300072672 its reverse (27627000303), we get a palindrome (57927072975).

The spelling of 30300072672 in words is "thirty billion, three hundred million, seventy-two thousand, six hundred seventy-two".