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17138069 = 131318313
BaseRepresentation
bin100000101100…
…0000110010101
31012020201000022
41001120012111
513341404234
61411154525
7265446134
oct101300625
935221008
1017138069
1197460a3
1258a5a45
133720890
1423c191b
151787e2e
hex1058195

17138069 has 4 divisors (see below), whose sum is σ = 18456396. Its totient is φ = 15819744.

The previous prime is 17138063. The next prime is 17138111. The reversal of 17138069 is 96083171.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96083171 = 195057009.

It can be written as a sum of positive squares in 2 ways, for example, as 11135569 + 6002500 = 3337^2 + 2450^2 .

It is a cyclic number.

It is not a de Polignac number, because 17138069 - 212 = 17133973 is a prime.

It is a super-2 number, since 2×171380692 = 587426818097522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17138063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 659144 + ... + 659169.

It is an arithmetic number, because the mean of its divisors is an integer number (4614099).

Almost surely, 217138069 is an apocalyptic number.

It is an amenable number.

17138069 is a deficient number, since it is larger than the sum of its proper divisors (1318327).

17138069 is a wasteful number, since it uses less digits than its factorization.

17138069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318326.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 17138069 is about 4139.8150924890. The cubic root of 17138069 is about 257.8223894266.

The spelling of 17138069 in words is "seventeen million, one hundred thirty-eight thousand, sixty-nine".

Divisors: 1 13 1318313 17138069