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17422231309 = 721709208049
BaseRepresentation
bin10000001110011100…
…100010011100001101
31122222012000001101021
4100032130202130031
5241140042400214
612000442514141
71154511344200
oct201634423415
948865001337
1017422231309
11743043927a
123462805951
131848619912
14bb3bcd937
156be7cc924
hex40e72270d

17422231309 has 12 divisors (see below), whose sum is σ = 20278633500. Its totient is φ = 14924531328.

The previous prime is 17422231249. The next prime is 17422231327. The reversal of 17422231309 is 90313222471.

It can be written as a sum of positive squares in 2 ways, for example, as 11352263209 + 6069968100 = 106547^2 + 77910^2 .

It is not a de Polignac number, because 17422231309 - 227 = 17288013581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17422231369) 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, 20284 + ... + 187765.

It is an arithmetic number, because the mean of its divisors is an integer number (1689886125).

Almost surely, 217422231309 is an apocalyptic number.

It is an amenable number.

17422231309 is a deficient number, since it is larger than the sum of its proper divisors (2856402191).

17422231309 is a wasteful number, since it uses less digits than its factorization.

17422231309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209772 (or 209765 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The spelling of 17422231309 in words is "seventeen billion, four hundred twenty-two million, two hundred thirty-one thousand, three hundred nine".

Divisors: 1 7 49 1709 11963 83741 208049 1456343 10194401 355555741 2488890187 17422231309