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17138137 = 73234769
BaseRepresentation
bin100000101100…
…0000111011001
31012020201002211
41001120013121
513341410022
61411155121
7265446262
oct101300731
935221084
1017138137
119746155
1258a5aa1
133720913
1423c1969
151787e77
hex10581d9

17138137 has 4 divisors (see below), whose sum is σ = 17372980. Its totient is φ = 16903296.

The previous prime is 17138119. The next prime is 17138153. The reversal of 17138137 is 73183171.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73183171 = 233181877.

It can be written as a sum of positive squares in 2 ways, for example, as 6405961 + 10732176 = 2531^2 + 3276^2 .

It is a de Polignac number, because none of the positive numbers 2k-17138137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 17138099 and 17138108.

It is not an unprimeable number, because it can be changed into a prime (17138117) 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, 117312 + ... + 117457.

It is an arithmetic number, because the mean of its divisors is an integer number (4343245).

Almost surely, 217138137 is an apocalyptic number.

It is an amenable number.

17138137 is a deficient number, since it is larger than the sum of its proper divisors (234843).

17138137 is an equidigital number, since it uses as much as digits as its factorization.

17138137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234842.

The product of its digits is 3528, while the sum is 31.

The square root of 17138137 is about 4139.8233054081. The cubic root of 17138137 is about 257.8227304199.

The spelling of 17138137 in words is "seventeen million, one hundred thirty-eight thousand, one hundred thirty-seven".

Divisors: 1 73 234769 17138137