Search a number
-
+
2162105 = 511192069
BaseRepresentation
bin1000001111110110111001
311001211211222
420033312321
51023141410
6114201425
724243341
oct10176671
94054758
102162105
111247470
12883275
135a916a
14403d21
152ca955
hex20fdb9

2162105 has 16 divisors (see below), whose sum is σ = 2980800. Its totient is φ = 1488960.

The previous prime is 2162089. The next prime is 2162113. The reversal of 2162105 is 5012612.

It is not a de Polignac number, because 2162105 - 24 = 2162089 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 11 + ... + 2079.

It is an arithmetic number, because the mean of its divisors is an integer number (186300).

22162105 is an apocalyptic number.

It is an amenable number.

2162105 is a deficient number, since it is larger than the sum of its proper divisors (818695).

2162105 is a wasteful number, since it uses less digits than its factorization.

2162105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2104.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 2162105 is about 1470.4098068226. The cubic root of 2162105 is about 129.3080592965.

Adding to 2162105 its reverse (5012612), we get a palindrome (7174717).

It can be divided in two parts, 21 and 62105, that added together give a palindrome (62126).

The spelling of 2162105 in words is "two million, one hundred sixty-two thousand, one hundred five".

Divisors: 1 5 11 19 55 95 209 1045 2069 10345 22759 39311 113795 196555 432421 2162105