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17149143 = 311895839
BaseRepresentation
bin100000101101…
…0110011010111
31012021021012110
41001122303113
513342233033
61411322103
7265523334
oct101326327
935237173
1017149143
119753450
1258b0333
13372592b
1423c598b
15178b363
hex105acd7

17149143 has 16 divisors (see below), whose sum is σ = 25228800. Its totient is φ = 10274880.

The previous prime is 17149129. The next prime is 17149163. The reversal of 17149143 is 34194171.

It is not a de Polignac number, because 17149143 - 210 = 17148119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 17149143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17149103) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 18 + ... + 5856.

It is an arithmetic number, because the mean of its divisors is an integer number (1576800).

Almost surely, 217149143 is an apocalyptic number.

17149143 is a deficient number, since it is larger than the sum of its proper divisors (8079657).

17149143 is a wasteful number, since it uses less digits than its factorization.

17149143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5942.

The product of its digits is 3024, while the sum is 30.

The square root of 17149143 is about 4141.1523758490. The cubic root of 17149143 is about 257.8779093027.

The spelling of 17149143 in words is "seventeen million, one hundred forty-nine thousand, one hundred forty-three".

Divisors: 1 3 11 33 89 267 979 2937 5839 17517 64229 192687 519671 1559013 5716381 17149143