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2170423 is a prime number
BaseRepresentation
bin1000010001111000110111
311002021021001
420101320313
51023423143
6114304131
724306523
oct10217067
94067231
102170423
111252742
12888047
135acb98
14406d83
152cd14d
hex211e37

2170423 has 2 divisors, whose sum is σ = 2170424. Its totient is φ = 2170422.

The previous prime is 2170411. The next prime is 2170429. The reversal of 2170423 is 3240712.

2170423 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 2170423 - 213 = 2162231 is a prime.

It is equal to p160660 and since 2170423 and 160660 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2170423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2170429) 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, 1085211 + 1085212.

It is an arithmetic number, because the mean of its divisors is an integer number (1085212).

22170423 is an apocalyptic number.

2170423 is a deficient number, since it is larger than the sum of its proper divisors (1).

2170423 is an equidigital number, since it uses as much as digits as its factorization.

2170423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 2170423 is about 1473.2355548248. The cubic root of 2170423 is about 129.4736707503.

The spelling of 2170423 in words is "two million, one hundred seventy thousand, four hundred twenty-three".