Search a number
BaseRepresentation
bin1000011110001111001010
311011211122100
420132033022
51032033002
6115334230
724610140
oct10361712
94154570
102221002
111287743
128b1376
135c9c04
1441b590
152dd11c
hex21e3ca

2221002 has 24 divisors (see below), whose sum is σ = 5499936. Its totient is φ = 634536.

The previous prime is 2220979. The next prime is 2221007. The reversal of 2221002 is 2001222.

Adding to 2221002 its reverse (2001222), we get a palindrome (4222224).

2221002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (2221007) 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 11 ways as a sum of consecutive naturals, for example, 8688 + ... + 8939.

It is an arithmetic number, because the mean of its divisors is an integer number (229164).

22221002 is an apocalyptic number.

2221002 is an abundant number, since it is smaller than the sum of its proper divisors (3278934).

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

2221002 is a wasteful number, since it uses less digits than its factorization.

2221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17642 (or 17639 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 2221002 is about 1490.3026538257. The cubic root of 2221002 is about 130.4716986234.

The spelling of 2221002 in words is "two million, two hundred twenty-one thousand, two".