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2216007 = 32246223
BaseRepresentation
bin1000011101000001000111
311011120210100
420131001013
51031403012
6115255143
724556443
oct10350107
94146710
102216007
111283a12
128aa4b3
135c7861
14419823
152db8dc
hex21d047

2216007 has 6 divisors (see below), whose sum is σ = 3200912. Its totient is φ = 1477332.

The previous prime is 2215999. The next prime is 2216021. The reversal of 2216007 is 7006122.

It is a happy number.

It is not a de Polignac number, because 2216007 - 23 = 2215999 is a prime.

It is a Duffinian number.

2216007 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216047) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123103 + ... + 123120.

22216007 is an apocalyptic number.

2216007 is a deficient number, since it is larger than the sum of its proper divisors (984905).

2216007 is a wasteful number, since it uses less digits than its factorization.

2216007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246229 (or 246226 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 2216007 is about 1488.6258764377. The cubic root of 2216007 is about 130.3738155801.

The spelling of 2216007 in words is "two million, two hundred sixteen thousand, seven".

Divisors: 1 3 9 246223 738669 2216007