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30279482240 = 2757191272801
BaseRepresentation
bin11100001100110011…
…000011101110000000
32220011020012001221012
4130030303003232000
5444003021412430
621524334220052
72121232231610
oct341463035600
986136161835
1030279482240
1111928a84197
125a50654628
132b1725abc7
1416735daa40
15bc3433695
hex70ccc3b80

30279482240 has 256 divisors, whose sum is σ = 87798988800. Its totient is φ = 9754214400.

The previous prime is 30279482161. The next prime is 30279482269. The reversal of 30279482240 is 4228497203.

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, 10808840 + ... + 10811640.

It is an arithmetic number, because the mean of its divisors is an integer number (342964800).

Almost surely, 230279482240 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 30279482240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43899494400).

30279482240 is an abundant number, since it is smaller than the sum of its proper divisors (57519506560).

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

30279482240 is a wasteful number, since it uses less digits than its factorization.

30279482240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2973 (or 2961 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 41.

The spelling of 30279482240 in words is "thirty billion, two hundred seventy-nine million, four hundred eighty-two thousand, two hundred forty".