Search a number
-
+
2020747 = 61157211
BaseRepresentation
bin111101101010110001011
310210122221111
413231112023
51004130442
6111151151
723114251
oct7552613
93718844
102020747
111160243
128154b7
13559a11
143a85d1
1529db17
hex1ed58b

2020747 has 8 divisors (see below), whose sum is σ = 2076752. Its totient is φ = 1965600.

The previous prime is 2020729. The next prime is 2020771. The reversal of 2020747 is 7470202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2020747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2020727) 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 7 ways as a sum of consecutive naturals, for example, 9472 + ... + 9682.

It is an arithmetic number, because the mean of its divisors is an integer number (259594).

22020747 is an apocalyptic number.

2020747 is a deficient number, since it is larger than the sum of its proper divisors (56005).

2020747 is a wasteful number, since it uses less digits than its factorization.

2020747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429.

The product of its (nonzero) digits is 784, while the sum is 22.

The square root of 2020747 is about 1421.5298097472. The cubic root of 2020747 is about 126.4262668733.

Adding to 2020747 its reverse (7470202), we get a palindrome (9490949).

The spelling of 2020747 in words is "two million, twenty thousand, seven hundred forty-seven".

Divisors: 1 61 157 211 9577 12871 33127 2020747