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8275985 = 51655197
BaseRepresentation
bin11111100100100000010001
3120120110111222
4133210200101
54104312420
6453214425
7130226144
oct37444021
916513458
108275985
114742963
122931415
131939c43
14115605b
15ad7225
hex7e4811

8275985 has 4 divisors (see below), whose sum is σ = 9931188. Its totient is φ = 6620784.

The previous prime is 8275903. The next prime is 8275987. The reversal of 8275985 is 5895728.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5303809 + 2972176 = 2303^2 + 1724^2 .

It is a cyclic number.

It is not a de Polignac number, because 8275985 - 212 = 8271889 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8275987) 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, 827594 + ... + 827603.

It is an arithmetic number, because the mean of its divisors is an integer number (2482797).

Almost surely, 28275985 is an apocalyptic number.

It is an amenable number.

8275985 is a deficient number, since it is larger than the sum of its proper divisors (1655203).

8275985 is a wasteful number, since it uses less digits than its factorization.

8275985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1655202.

The product of its digits is 201600, while the sum is 44.

The square root of 8275985 is about 2876.8011749163. The cubic root of 8275985 is about 202.2739233803.

It can be divided in two parts, 82 and 75985, that added together give a palindrome (76067).

The spelling of 8275985 in words is "eight million, two hundred seventy-five thousand, nine hundred eighty-five".

Divisors: 1 5 1655197 8275985