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30109842720 = 2533553131507
BaseRepresentation
bin11100000010101011…
…111011110100100000
32212201101222111021000
4130002223323310200
5443131104431340
621455434232000
72114102304006
oct340253736440
985641874230
1030109842720
1111851248541
125a03885600
132abb0739a9
141658c7ca76
15bb35c4d30
hex702afbd20

30109842720 has 192 divisors, whose sum is σ = 107373651840. Its totient is φ = 7877735424.

The previous prime is 30109842649. The next prime is 30109842739. The reversal of 30109842720 is 2724890103.

30109842720 is a `hidden beast` number, since 301 + 0 + 9 + 84 + 272 + 0 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 163207 + ... + 294713.

It is an arithmetic number, because the mean of its divisors is an integer number (559237770).

Almost surely, 230109842720 is an apocalyptic number.

30109842720 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 30109842720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53686825920).

30109842720 is an abundant number, since it is smaller than the sum of its proper divisors (77263809120).

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

30109842720 is a wasteful number, since it uses less digits than its factorization.

30109842720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131584 (or 131570 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 30109842720 in words is "thirty billion, one hundred nine million, eight hundred forty-two thousand, seven hundred twenty".