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2154086 = 211179547
BaseRepresentation
bin1000001101111001100110
311001102211222
420031321212
51022412321
6114100342
724211064
oct10157146
94042758
102154086
111241440
1287a6b2
135a560c
14401034
152c83ab
hex20de66

2154086 has 16 divisors (see below), whose sum is σ = 3551040. Its totient is φ = 971880.

The previous prime is 2154077. The next prime is 2154109. The reversal of 2154086 is 6804512.

2154086 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a d-powerful number, because it can be written as 221 + 1 + 5 + 47 + 0 + 85 + 65 .

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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3665 + ... + 4211.

It is an arithmetic number, because the mean of its divisors is an integer number (221940).

22154086 is an apocalyptic number.

2154086 is a deficient number, since it is larger than the sum of its proper divisors (1396954).

2154086 is a wasteful number, since it uses less digits than its factorization.

2154086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 2154086 is about 1467.6804829390. The cubic root of 2154086 is about 129.1479983195.

Adding to 2154086 its reverse (6804512), we get a palindrome (8958598).

The spelling of 2154086 in words is "two million, one hundred fifty-four thousand, eighty-six".

Divisors: 1 2 11 22 179 358 547 1094 1969 3938 6017 12034 97913 195826 1077043 2154086