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19196354968 = 2371927496563
BaseRepresentation
bin10001111000001100…
…010010000110011000
31211112211022212111221
4101320030102012120
5303303231324333
612452500301424
71246463216320
oct217014220630
954484285457
1019196354968
11816092967a
1238789a1874
131a6c04992b
14d0168c280
15775423d2d
hex478312198

19196354968 has 64 divisors (see below), whose sum is σ = 43322400000. Its totient is φ = 7789986432.

The previous prime is 19196354963. The next prime is 19196354993. The reversal of 19196354968 is 86945369191.

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19196354963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2921655 + ... + 2928217.

It is an arithmetic number, because the mean of its divisors is an integer number (676912500).

Almost surely, 219196354968 is an apocalyptic number.

It is an amenable number.

19196354968 is an abundant number, since it is smaller than the sum of its proper divisors (24126045032).

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

19196354968 is a wasteful number, since it uses less digits than its factorization.

19196354968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9344 (or 9340 counting only the distinct ones).

The product of its digits is 12597120, while the sum is 61.

The spelling of 19196354968 in words is "nineteen billion, one hundred ninety-six million, three hundred fifty-four thousand, nine hundred sixty-eight".

Divisors: 1 2 4 7 8 14 19 28 38 56 76 133 152 266 532 1064 2749 5498 6563 10996 13126 19243 21992 26252 38486 45941 52231 52504 76972 91882 104462 124697 153944 183764 208924 249394 365617 367528 417848 498788 731234 872879 997576 1462468 1745758 2924936 3491516 6983032 18041687 36083374 72166748 126291809 144333496 252583618 342792053 505167236 685584106 1010334472 1371168212 2399544371 2742336424 4799088742 9598177484 19196354968