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20384803942 = 21910116093301
BaseRepresentation
bin10010111111000001…
…110110110001100110
31221121122121100000121
4102333001312301212
5313222002211232
613210433032154
71321103655166
oct227701666146
957548540017
1020384803942
118710765a08
123b4a9b565a
131bcb328589
14db54525a6
157e492bd97
hex4bf076c66

20384803942 has 32 divisors (see below), whose sum is σ = 32535266400. Its totient is φ = 9551520000.

The previous prime is 20384803931. The next prime is 20384803969. The reversal of 20384803942 is 24930848302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6173692 + ... + 6176992.

It is an arithmetic number, because the mean of its divisors is an integer number (1016727075).

Almost surely, 220384803942 is an apocalyptic number.

20384803942 is a deficient number, since it is larger than the sum of its proper divisors (12150462458).

20384803942 is a wasteful number, since it uses less digits than its factorization.

20384803942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5032.

The product of its (nonzero) digits is 331776, while the sum is 43.

The spelling of 20384803942 in words is "twenty billion, three hundred eighty-four million, eight hundred three thousand, nine hundred forty-two".

Divisors: 1 2 19 38 101 202 1609 1919 3218 3301 3838 6602 30571 61142 62719 125438 162509 325018 333401 666802 3087671 5311309 6175342 6334619 10622618 12669238 100914871 201829742 536442209 1072884418 10192401971 20384803942