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2221030 = 25731729
BaseRepresentation
bin1000011110001111100110
311011211200101
420132033212
51032033110
6115334314
724610210
oct10361746
94154611
102221030
111287769
128b139a
135c9c26
1441b5b0
152dd13a
hex21e3e6

2221030 has 16 divisors (see below), whose sum is σ = 4569120. Its totient is φ = 761472.

The previous prime is 2221019. The next prime is 2221031. The reversal of 2221030 is 301222.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 2220998 and 2221016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221031) 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, 15795 + ... + 15934.

It is an arithmetic number, because the mean of its divisors is an integer number (285570).

22221030 is an apocalyptic number.

2221030 is an abundant number, since it is smaller than the sum of its proper divisors (2348090).

2221030 is a wasteful number, since it uses less digits than its factorization.

2221030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31743.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 2221030 is about 1490.3120478611. The cubic root of 2221030 is about 130.4722469033.

Adding to 2221030 its reverse (301222), we get a palindrome (2522252).

The spelling of 2221030 in words is "two million, two hundred twenty-one thousand, thirty".

Divisors: 1 2 5 7 10 14 35 70 31729 63458 158645 222103 317290 444206 1110515 2221030