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2221089 = 31356951
BaseRepresentation
bin1000011110010000100001
311011211202120
420132100201
51032033324
6115334453
724610323
oct10362041
94154676
102221089
111287812
128b1429
135c9c70
1441b613
152dd179
hex21e421

2221089 has 8 divisors (see below), whose sum is σ = 3189312. Its totient is φ = 1366800.

The previous prime is 2221069. The next prime is 2221097. The reversal of 2221089 is 9801222.

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

It is not a de Polignac number, because 2221089 - 27 = 2220961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221019) 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, 28437 + ... + 28514.

It is an arithmetic number, because the mean of its divisors is an integer number (398664).

22221089 is an apocalyptic number.

It is an amenable number.

2221089 is a deficient number, since it is larger than the sum of its proper divisors (968223).

2221089 is a wasteful number, since it uses less digits than its factorization.

2221089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56967.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 2221089 is about 1490.3318422419. The cubic root of 2221089 is about 130.4734021923.

The spelling of 2221089 in words is "two million, two hundred twenty-one thousand, eighty-nine".

Divisors: 1 3 13 39 56951 170853 740363 2221089