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17969840524 = 2243104475817
BaseRepresentation
bin10000101111000101…
…100000000110001100
31201101100102111000001
4100233011200012030
5243300234344044
612131044014044
71204211060416
oct205705400614
951340374001
1017969840524
117691563179
123596091324
131904c00b3c
14c268199b6
157028ec2d4
hex42f16018c

17969840524 has 12 divisors (see below), whose sum is σ = 32178551944. Its totient is φ = 8775968544.

The previous prime is 17969840521. The next prime is 17969840533. The reversal of 17969840524 is 42504896971.

It is not an unprimeable number, because it can be changed into a prime (17969840521) 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 3 ways as a sum of consecutive naturals, for example, 52237737 + ... + 52238080.

Almost surely, 217969840524 is an apocalyptic number.

It is an amenable number.

17969840524 is a deficient number, since it is larger than the sum of its proper divisors (14208711420).

17969840524 is a wasteful number, since it uses less digits than its factorization.

17969840524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104475864 (or 104475862 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 17969840524 in words is "seventeen billion, nine hundred sixty-nine million, eight hundred forty thousand, five hundred twenty-four".

Divisors: 1 2 4 43 86 172 104475817 208951634 417903268 4492460131 8984920262 17969840524