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2166166 = 21083083
BaseRepresentation
bin1000010000110110010110
311002001102101
420100312112
51023304131
6114232314
724261232
oct10206626
94061371
102166166
11124a522
1288569a
135aac72
144055c2
152cbc61
hex210d96

2166166 has 4 divisors (see below), whose sum is σ = 3249252. Its totient is φ = 1083082.

The previous prime is 2166161. The next prime is 2166167. The reversal of 2166166 is 6616612.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 541540 + ... + 541543.

It is an arithmetic number, because the mean of its divisors is an integer number (812313).

22166166 is an apocalyptic number.

2166166 is a deficient number, since it is larger than the sum of its proper divisors (1083086).

2166166 is a wasteful number, since it uses less digits than its factorization.

2166166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083085.

The product of its digits is 2592, while the sum is 28.

The square root of 2166166 is about 1471.7900665516. The cubic root of 2166166 is about 129.3889668072.

It can be divided in two parts, 2166 and 166, that added together give a palindrome (2332).

The spelling of 2166166 in words is "two million, one hundred sixty-six thousand, one hundred sixty-six".

Divisors: 1 2 1083083 2166166