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15084085 = 53016817
BaseRepresentation
bin111001100010…
…101000110101
31001101100110211
4321202220311
512330142320
61255145421
7242132632
oct71425065
931340424
1015084085
118572995
125075271
1331819c3
142009189
1514ce55a
hexe62a35

15084085 has 4 divisors (see below), whose sum is σ = 18100908. Its totient is φ = 12067264.

The previous prime is 15084061. The next prime is 15084109. The reversal of 15084085 is 58048051.

15084085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58048051 = 62299319.

It is an interprime number because it is at equal distance from previous prime (15084061) and next prime (15084109).

It can be written as a sum of positive squares in 2 ways, for example, as 4990756 + 10093329 = 2234^2 + 3177^2 .

It is a cyclic number.

It is not a de Polignac number, because 15084085 - 25 = 15084053 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1508404 + ... + 1508413.

It is an arithmetic number, because the mean of its divisors is an integer number (4525227).

Almost surely, 215084085 is an apocalyptic number.

It is an amenable number.

15084085 is a deficient number, since it is larger than the sum of its proper divisors (3016823).

15084085 is an equidigital number, since it uses as much as digits as its factorization.

15084085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3016822.

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 15084085 is about 3883.8235026839. The cubic root of 15084085 is about 247.0811744540.

The spelling of 15084085 in words is "fifteen million, eighty-four thousand, eighty-five".

Divisors: 1 5 3016817 15084085