Search a number
-
+
2642772 = 2231120021
BaseRepresentation
bin1010000101001101010100
311222021012110
422011031110
51134032042
6132351020
731314606
oct12051524
94867173
102642772
111545610
12a75470
13716b92
144cb176
1537309c
hex285354

2642772 has 24 divisors (see below), whose sum is σ = 6727392. Its totient is φ = 800800.

The previous prime is 2642771. The next prime is 2642777. The reversal of 2642772 is 2772462.

2642772 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a d-powerful number, because it can be written as 2 + 68 + 4 + 213 + 73 + 77 + 217 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2642771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9879 + ... + 10142.

It is an arithmetic number, because the mean of its divisors is an integer number (280308).

22642772 is an apocalyptic number.

2642772 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2642772 is an abundant number, since it is smaller than the sum of its proper divisors (4084620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2642772 is a wasteful number, since it uses less digits than its factorization.

2642772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20039 (or 20037 counting only the distinct ones).

The product of its digits is 9408, while the sum is 30.

The square root of 2642772 is about 1625.6604811584. The cubic root of 2642772 is about 138.2568206422.

The spelling of 2642772 in words is "two million, six hundred forty-two thousand, seven hundred seventy-two".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 20021 40042 60063 80084 120126 220231 240252 440462 660693 880924 1321386 2642772