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8106861 = 37386041
BaseRepresentation
bin11110111011001101101101
3120020212112010
4132323031231
54033404421
6445431433
7125623110
oct36731555
916225463
108106861
114637894
12286b579
1318aac79
141110577
15aa2076
hex7bb36d

8106861 has 8 divisors (see below), whose sum is σ = 12353344. Its totient is φ = 4632480.

The previous prime is 8106817. The next prime is 8106871. The reversal of 8106861 is 1686018.

8106861 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8106861 - 26 = 8106797 is a prime.

It is an Ulam number.

It is a Duffinian number.

8106861 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8106871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193000 + ... + 193041.

It is an arithmetic number, because the mean of its divisors is an integer number (1544168).

Almost surely, 28106861 is an apocalyptic number.

It is an amenable number.

8106861 is a deficient number, since it is larger than the sum of its proper divisors (4246483).

8106861 is a wasteful number, since it uses less digits than its factorization.

8106861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386051.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 8106861 is about 2847.2549938493. The cubic root of 8106861 is about 200.8865724725.

The spelling of 8106861 in words is "eight million, one hundred six thousand, eight hundred sixty-one".

Divisors: 1 3 7 21 386041 1158123 2702287 8106861