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16872005351853 = 324358174301501
BaseRepresentation
bin1111010110000101000111…
…1000101011100110101101
32012201221121001200102011200
43311201101320223212231
54202412331332224403
655514520421040113
73360651010142151
oct365412170534655
965657531612150
1016872005351853
115415417194813
121a85aa8556039
1395503c1ab652
14424876349061
151e3d2d89bca3
hexf5851e2b9ad

16872005351853 has 12 divisors (see below), whose sum is σ = 24370735982268. Its totient is φ = 11247975144000.

The previous prime is 16872005351813. The next prime is 16872005351879. The reversal of 16872005351853 is 35815350027861.

16872005351853 is a `hidden beast` number, since 1 + 6 + 8 + 7 + 20 + 0 + 53 + 518 + 53 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 14903475692004 + 1968529659849 = 3860502^2 + 1403043^2 .

It is not a de Polignac number, because 16872005351853 - 214 = 16872005335469 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16872005351853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16872005351813) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1771603 + ... + 6073103.

It is an arithmetic number, because the mean of its divisors is an integer number (2030894665189).

Almost surely, 216872005351853 is an apocalyptic number.

It is an amenable number.

16872005351853 is a deficient number, since it is larger than the sum of its proper divisors (7498730630415).

16872005351853 is a wasteful number, since it uses less digits than its factorization.

16872005351853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4737324 (or 4737321 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 54.

The spelling of 16872005351853 in words is "sixteen trillion, eight hundred seventy-two billion, five million, three hundred fifty-one thousand, eight hundred fifty-three".

Divisors: 1 3 9 435817 1307451 3922353 4301501 12904503 38713509 1874667261317 5624001783951 16872005351853