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30844588840 = 23513223283701
BaseRepresentation
bin11100101110011110…
…110001001100101000
32221121121112110110021
4130232132301030220
51001132203320330
622100402330224
72141233451662
oct345636611450
987547473407
1030844588840
1112098a6a13a
125b89959974
132ba735a400
1416c869d532
15c07d5c67a
hex72e7b1328

30844588840 has 192 divisors, whose sum is σ = 78806183040. Its totient is φ = 10839628800.

The previous prime is 30844588829. The next prime is 30844588871. The reversal of 30844588840 is 4888544803.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44000490 + ... + 44001190.

It is an arithmetic number, because the mean of its divisors is an integer number (410448870).

Almost surely, 230844588840 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 30844588840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39403091520).

30844588840 is an abundant number, since it is smaller than the sum of its proper divisors (47961594200).

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

30844588840 is a wasteful number, since it uses less digits than its factorization.

30844588840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044 (or 1027 counting only the distinct ones).

The product of its (nonzero) digits is 3932160, while the sum is 52.

The spelling of 30844588840 in words is "thirty billion, eight hundred forty-four million, five hundred eighty-eight thousand, eight hundred forty".