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17443144302857 = 721327383272061
BaseRepresentation
bin1111110111010100110001…
…1010111000000100001001
32021202112210201101021100022
43331311030122320010021
54241242024420142412
6101033134142550225
73450140243133200
oct375651432700411
967675721337308
1017443144302857
115615661242aa9
121b58721898375
13996b5c711970
14444377542237
15203b09abca72
hexfdd4c6b8109

17443144302857 has 12 divisors (see below), whose sum is σ = 21851851105476. Its totient is φ = 13801169118240.

The previous prime is 17443144302841. The next prime is 17443144302877. The reversal of 17443144302857 is 75820344134471.

17443144302857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6125679450121 + 11317464852736 = 2475011^2 + 3364144^2 .

It is not a de Polignac number, because 17443144302857 - 24 = 17443144302841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 17443144302799 and 17443144302808.

It is not an unprimeable number, because it can be changed into a prime (17443144302817) 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, 13691635394 + ... + 13691636667.

It is an arithmetic number, because the mean of its divisors is an integer number (1820987592123).

Almost surely, 217443144302857 is an apocalyptic number.

It is an amenable number.

17443144302857 is a deficient number, since it is larger than the sum of its proper divisors (4408706802619).

17443144302857 is a wasteful number, since it uses less digits than its factorization.

17443144302857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27383272088 (or 27383272081 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 53.

The spelling of 17443144302857 in words is "seventeen trillion, four hundred forty-three billion, one hundred forty-four million, three hundred two thousand, eight hundred fifty-seven".

Divisors: 1 7 13 49 91 637 27383272061 191682904427 355982536793 1341780330989 2491877757551 17443144302857