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8086121 = 19341897
BaseRepresentation
bin11110110110001001101001
3120012211001222
4132312021221
54032223441
6445151425
7125505461
oct36661151
916184058
108086121
11462324a
12285b575
1318a16b4
141106ba1
15a9ad4b
hex7b6269

8086121 has 4 divisors (see below), whose sum is σ = 8128212. Its totient is φ = 8044032.

The previous prime is 8086063. The next prime is 8086129. The reversal of 8086121 is 1216808.

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 3759721 + 4326400 = 1939^2 + 2080^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-8086121 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 (8086129) 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 in 3 ways as a sum of consecutive naturals, for example, 20756 + ... + 21141.

It is an arithmetic number, because the mean of its divisors is an integer number (2032053).

Almost surely, 28086121 is an apocalyptic number.

It is an amenable number.

8086121 is a deficient number, since it is larger than the sum of its proper divisors (42091).

8086121 is a wasteful number, since it uses less digits than its factorization.

8086121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42090.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 8086121 is about 2843.6105570208. The cubic root of 8086121 is about 200.7151150051.

The spelling of 8086121 in words is "eight million, eighty-six thousand, one hundred twenty-one".

Divisors: 1 193 41897 8086121