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8105236 = 222026309
BaseRepresentation
bin11110111010110100010100
3120020210021221
4132322310110
54033331421
6445420124
7125615266
oct36726424
916223257
108105236
114636647
12286a644
1318aa2c9
14110db36
15aa1841
hex7bad14

8105236 has 6 divisors (see below), whose sum is σ = 14184170. Its totient is φ = 4052616.

The previous prime is 8105231. The next prime is 8105261. The reversal of 8105236 is 6325018.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8088336 + 16900 = 2844^2 + 130^2 .

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 8105236.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8105231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1013151 + ... + 1013158.

Almost surely, 28105236 is an apocalyptic number.

It is an amenable number.

8105236 is a deficient number, since it is larger than the sum of its proper divisors (6078934).

8105236 is a wasteful number, since it uses less digits than its factorization.

8105236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2026313 (or 2026311 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 8105236 is about 2846.9696169787. The cubic root of 8105236 is about 200.8731491720.

The spelling of 8105236 in words is "eight million, one hundred five thousand, two hundred thirty-six".

Divisors: 1 2 4 2026309 4052618 8105236