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2220249 = 31494967
BaseRepresentation
bin1000011110000011011001
311011210121110
420132003121
51032021444
6115330533
724605013
oct10360331
94153543
102220249
111287119
128b0a49
135c9775
1441b1b3
152dccb9
hex21e0d9

2220249 has 8 divisors (see below), whose sum is σ = 2980800. Its totient is φ = 1469936.

The previous prime is 2220209. The next prime is 2220263. The reversal of 2220249 is 9420222.

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

It is a cyclic number.

It is not a de Polignac number, because 2220249 - 211 = 2218201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2220209) 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, 2037 + ... + 2930.

It is an arithmetic number, because the mean of its divisors is an integer number (372600).

22220249 is an apocalyptic number.

It is an amenable number.

2220249 is a deficient number, since it is larger than the sum of its proper divisors (760551).

2220249 is a wasteful number, since it uses less digits than its factorization.

2220249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5119.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 2220249 is about 1490.0499991611. The cubic root of 2220249 is about 130.4569520820.

The spelling of 2220249 in words is "two million, two hundred twenty thousand, two hundred forty-nine".

Divisors: 1 3 149 447 4967 14901 740083 2220249