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2170994 = 27222153
BaseRepresentation
bin1000010010000001110010
311002022001012
420102001302
51023432434
6114310522
724311300
oct10220162
94068035
102170994
111253111
12888442
135b0217
14407270
152cd3ce
hex212072

2170994 has 12 divisors (see below), whose sum is σ = 3788334. Its totient is φ = 930384.

The previous prime is 2170943. The next prime is 2171003. The reversal of 2170994 is 4990712.

It can be written as a sum of positive squares in only one way, i.e., 2140369 + 30625 = 1463^2 + 175^2 .

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 2170994.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10979 + ... + 11174.

22170994 is an apocalyptic number.

2170994 is a deficient number, since it is larger than the sum of its proper divisors (1617340).

2170994 is a wasteful number, since it uses less digits than its factorization.

2170994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22169 (or 22162 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 2170994 is about 1473.4293332223. The cubic root of 2170994 is about 129.4850238342.

The spelling of 2170994 in words is "two million, one hundred seventy thousand, nine hundred ninety-four".

Divisors: 1 2 7 14 49 98 22153 44306 155071 310142 1085497 2170994