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2069197 = 13159169
BaseRepresentation
bin111111001001011001101
310220010101221
413321023031
51012203242
6112203341
723405434
oct7711315
93803357
102069197
111193689
12839551
13575aa0
143bc11b
152ad167
hex1f92cd

2069197 has 4 divisors (see below), whose sum is σ = 2228380. Its totient is φ = 1910016.

The previous prime is 2069191. The next prime is 2069209. The reversal of 2069197 is 7919602.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7919602 = 23959801.

It can be written as a sum of positive squares in 2 ways, for example, as 139876 + 1929321 = 374^2 + 1389^2 .

It is a cyclic number.

It is not a de Polignac number, because 2069197 - 27 = 2069069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2069191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79572 + ... + 79597.

It is an arithmetic number, because the mean of its divisors is an integer number (557095).

22069197 is an apocalyptic number.

It is an amenable number.

2069197 is a deficient number, since it is larger than the sum of its proper divisors (159183).

2069197 is a wasteful number, since it uses less digits than its factorization.

2069197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159182.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 2069197 is about 1438.4703681342. The cubic root of 2069197 is about 127.4287080618.

The spelling of 2069197 in words is "two million, sixty-nine thousand, one hundred ninety-seven".

Divisors: 1 13 159169 2069197