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13019841444 = 2231084986787
BaseRepresentation
bin11000010000000101…
…10000001110100100
31020121101010110210210
430020002300032210
5203131034411234
65551540215420
7640433553261
oct141002601644
936541113723
1013019841444
1155813a7645
12263439a570
1312c652abbc
148b7252268
15513070be9
hex3080b03a4

13019841444 has 12 divisors (see below), whose sum is σ = 30379630064. Its totient is φ = 4339947144.

The previous prime is 13019841431. The next prime is 13019841491. The reversal of 13019841444 is 44414891031.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 542493382 + ... + 542493405.

Almost surely, 213019841444 is an apocalyptic number.

It is an amenable number.

13019841444 is an abundant number, since it is smaller than the sum of its proper divisors (17359788620).

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

13019841444 is a wasteful number, since it uses less digits than its factorization.

13019841444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084986794 (or 1084986792 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The spelling of 13019841444 in words is "thirteen billion, nineteen million, eight hundred forty-one thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 12 1084986787 2169973574 3254960361 4339947148 6509920722 13019841444