Search a number
-
+
2221010 = 251161331
BaseRepresentation
bin1000011110001111010010
311011211122122
420132033102
51032033020
6115334242
724610151
oct10361722
94154578
102221010
111287750
128b1382
135c9c0c
1441b598
152dd125
hex21e3d2

2221010 has 32 divisors (see below), whose sum is σ = 4446144. Its totient is φ = 792000.

The previous prime is 2221007. The next prime is 2221019. The reversal of 2221010 is 101222.

2221010 = 1602 + 1612 + ... + 2202.

2221010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2221019) 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 15 ways as a sum of consecutive naturals, for example, 6545 + ... + 6875.

It is an arithmetic number, because the mean of its divisors is an integer number (138942).

22221010 is an apocalyptic number.

2221010 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

2221010 is a wasteful number, since it uses less digits than its factorization.

2221010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 2221010 is about 1490.3053378419. The cubic root of 2221010 is about 130.4718552753.

Adding to 2221010 its reverse (101222), we get a palindrome (2322232).

The spelling of 2221010 in words is "two million, two hundred twenty-one thousand, ten".

Divisors: 1 2 5 10 11 22 55 61 110 122 305 331 610 662 671 1342 1655 3310 3355 3641 6710 7282 18205 20191 36410 40382 100955 201910 222101 444202 1110505 2221010