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17257142806 = 2193114649527
BaseRepresentation
bin10000000100100110…
…110001101000010110
31122112200100200112021
4100010212301220112
5240320312032211
611532224243354
71150435202461
oct200446615026
948480320467
1017257142806
1173562308a2
12341747055a
131820367007
14b99cd82d8
156b006c771
hex4049b1a16

17257142806 has 16 divisors (see below), whose sum is σ = 28127093760. Its totient is φ = 7910744040.

The previous prime is 17257142783. The next prime is 17257142849. The reversal of 17257142806 is 60824175271.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7323586 + ... + 7325941.

It is an arithmetic number, because the mean of its divisors is an integer number (1757943360).

Almost surely, 217257142806 is an apocalyptic number.

17257142806 is a deficient number, since it is larger than the sum of its proper divisors (10869950954).

17257142806 is a wasteful number, since it uses less digits than its factorization.

17257142806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14649579.

The product of its (nonzero) digits is 188160, while the sum is 43.

The spelling of 17257142806 in words is "seventeen billion, two hundred fifty-seven million, one hundred forty-two thousand, eight hundred six".

Divisors: 1 2 19 31 38 62 589 1178 14649527 29299054 278341013 454135337 556682026 908270674 8628571403 17257142806