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13506485 = 52701297
BaseRepresentation
bin110011100001…
…011110110101
3221102012102012
4303201132311
511424201420
61201254005
7222542336
oct63413665
927365365
1013506485
117695693
124634305
132a4b905
141b1828d
1512bbdc5
hexce17b5

13506485 has 4 divisors (see below), whose sum is σ = 16207788. Its totient is φ = 10805184.

The previous prime is 13506481. The next prime is 13506509. The reversal of 13506485 is 58460531.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58460531 = 367159293.

It can be written as a sum of positive squares in 2 ways, for example, as 3118756 + 10387729 = 1766^2 + 3223^2 .

It is a cyclic number.

It is not a de Polignac number, because 13506485 - 22 = 13506481 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 (13506481) 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, 1350644 + ... + 1350653.

It is an arithmetic number, because the mean of its divisors is an integer number (4051947).

Almost surely, 213506485 is an apocalyptic number.

It is an amenable number.

13506485 is a deficient number, since it is larger than the sum of its proper divisors (2701303).

13506485 is an equidigital number, since it uses as much as digits as its factorization.

13506485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2701302.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 13506485 is about 3675.1170049401. The cubic root of 13506485 is about 238.1482787134.

The spelling of 13506485 in words is "thirteen million, five hundred six thousand, four hundred eighty-five".

Divisors: 1 5 2701297 13506485