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2164471 is a prime number
BaseRepresentation
bin1000010000011011110111
311001222002121
420100123313
51023230341
6114220411
724253261
oct10203367
94058077
102164471
111249221
12884707
135aa26a
14404b31
152cb4d1
hex2106f7

2164471 has 2 divisors, whose sum is σ = 2164472. Its totient is φ = 2164470.

The previous prime is 2164453. The next prime is 2164483. The reversal of 2164471 is 1744612.

2164471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2164471 - 213 = 2156279 is a prime.

It is a super-3 number, since 3×21644713 = 30421215949032777333, which contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2164441) by changing a digit.

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 as a sum of consecutive naturals, namely, 1082235 + 1082236.

It is an arithmetic number, because the mean of its divisors is an integer number (1082236).

22164471 is an apocalyptic number.

2164471 is a deficient number, since it is larger than the sum of its proper divisors (1).

2164471 is an equidigital number, since it uses as much as digits as its factorization.

2164471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1344, while the sum is 25.

The square root of 2164471 is about 1471.2141244564. The cubic root of 2164471 is about 129.3552095410.

The spelling of 2164471 in words is "two million, one hundred sixty-four thousand, four hundred seventy-one".