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2180090 = 251119819
BaseRepresentation
bin1000010100001111111010
311002202112002
420110033322
51024230330
6114421002
724346643
oct10241772
94082462
102180090
111259a30
12891762
135b43c3
1440a6ca
152d0e45
hex2143fa

2180090 has 16 divisors (see below), whose sum is σ = 4281120. Its totient is φ = 792720.

The previous prime is 2180089. The next prime is 2180107. The reversal of 2180090 is 900812.

2180090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 9800 + ... + 10019.

It is an arithmetic number, because the mean of its divisors is an integer number (267570).

22180090 is an apocalyptic number.

2180090 is a deficient number, since it is larger than the sum of its proper divisors (2101030).

2180090 is a wasteful number, since it uses less digits than its factorization.

2180090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19837.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 2180090 is about 1476.5127835545. The cubic root of 2180090 is about 129.6656100374.

The spelling of 2180090 in words is "two million, one hundred eighty thousand, ninety".

Divisors: 1 2 5 10 11 22 55 110 19819 39638 99095 198190 218009 436018 1090045 2180090