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2193061 = 13168697
BaseRepresentation
bin1000010111011010100101
311010102022111
420113122211
51030134221
6115001021
724432523
oct10273245
94112274
102193061
111268752
12899171
135ba290
14411313
152d4be1
hex2176a5

2193061 has 4 divisors (see below), whose sum is σ = 2361772. Its totient is φ = 2024352.

The previous prime is 2193053. The next prime is 2193077. The reversal of 2193061 is 1603912.

2193061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 940900 + 1252161 = 970^2 + 1119^2 .

It is a cyclic number.

It is not a de Polignac number, because 2193061 - 23 = 2193053 is a prime.

It is a Duffinian number.

2193061 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2193031) 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 in 3 ways as a sum of consecutive naturals, for example, 84336 + ... + 84361.

It is an arithmetic number, because the mean of its divisors is an integer number (590443).

22193061 is an apocalyptic number.

It is an amenable number.

2193061 is a deficient number, since it is larger than the sum of its proper divisors (168711).

2193061 is a wasteful number, since it uses less digits than its factorization.

2193061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168710.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 2193061 is about 1480.8987136195. The cubic root of 2193061 is about 129.9222612145.

Adding to 2193061 its reverse (1603912), we get a palindrome (3796973).

The spelling of 2193061 in words is "two million, one hundred ninety-three thousand, sixty-one".

Divisors: 1 13 168697 2193061