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2072113 = 17121889
BaseRepresentation
bin111111001111000110001
310220021101221
413321320301
51012301423
6112225041
723420101
oct7717061
93807357
102072113
11119589a
1283b181
13577204
143bd201
152ade5d
hex1f9e31

2072113 has 4 divisors (see below), whose sum is σ = 2194020. Its totient is φ = 1950208.

The previous prime is 2072101. The next prime is 2072117. The reversal of 2072113 is 3112702.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3112702 = 21556351.

It can be written as a sum of positive squares in 2 ways, for example, as 651249 + 1420864 = 807^2 + 1192^2 .

It is a cyclic number.

It is not a de Polignac number, because 2072113 - 213 = 2063921 is a prime.

2072113 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2072117) 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, 60928 + ... + 60961.

It is an arithmetic number, because the mean of its divisors is an integer number (548505).

22072113 is an apocalyptic number.

It is an amenable number.

2072113 is a deficient number, since it is larger than the sum of its proper divisors (121907).

2072113 is a wasteful number, since it uses less digits than its factorization.

2072113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121906.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 2072113 is about 1439.4835879578. The cubic root of 2072113 is about 127.4885392749.

Adding to 2072113 its reverse (3112702), we get a palindrome (5184815).

The spelling of 2072113 in words is "two million, seventy-two thousand, one hundred thirteen".

Divisors: 1 17 121889 2072113