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5398031808 = 263413173463
BaseRepresentation
bin1010000011011111…
…10110110111000000
3111221012100102120000
411001233312313000
542023344004213
62251350320000
7250524341031
oct50157666700
914835312500
105398031808
112320059214
121067959000
13680461380
14392cb2a88
15218d7bc73
hex141bf6dc0

5398031808 has 280 divisors, whose sum is σ = 17369381568. Its totient is φ = 1647765504.

The previous prime is 5398031797. The next prime is 5398031819. The reversal of 5398031808 is 8081308935.

5398031808 is a `hidden beast` number, since 539 + 8 + 0 + 31 + 80 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (5398031797) and next prime (5398031819).

It is a congruent number.

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 39 ways as a sum of consecutive naturals, for example, 11658585 + ... + 11659047.

Almost surely, 25398031808 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 5398031808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8684690784).

5398031808 is an abundant number, since it is smaller than the sum of its proper divisors (11971349760).

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

5398031808 is a wasteful number, since it uses less digits than its factorization.

5398031808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673 (or 654 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 5398031808 is about 73471.2992126858. The cubic root of 5398031808 is about 1754.1974678292.

The spelling of 5398031808 in words is "five billion, three hundred ninety-eight million, thirty-one thousand, eight hundred eight".