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8106249 = 32702083
BaseRepresentation
bin11110111011000100001001
3120020211200110
4132323010021
54033344444
6445424533
7125621244
oct36730411
916224613
108106249
114637388
12286b149
1318aa8c8
14111025b
15aa1cb9
hex7bb109

8106249 has 4 divisors (see below), whose sum is σ = 10808336. Its totient is φ = 5404164.

The previous prime is 8106211. The next prime is 8106251. The reversal of 8106249 is 9426018.

8106249 is digitally balanced in base 4, 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 8106249 - 29 = 8105737 is a prime.

It is a super-2 number, since 2×81062492 = 131422545700002, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8106289) 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, 1351039 + ... + 1351044.

It is an arithmetic number, because the mean of its divisors is an integer number (2702084).

Almost surely, 28106249 is an apocalyptic number.

It is an amenable number.

8106249 is a deficient number, since it is larger than the sum of its proper divisors (2702087).

8106249 is a wasteful number, since it uses less digits than its factorization.

8106249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2702086.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 8106249 is about 2847.1475198872. The cubic root of 8106249 is about 200.8815172616.

The spelling of 8106249 in words is "eight million, one hundred six thousand, two hundred forty-nine".

Divisors: 1 3 2702083 8106249