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2216199 = 31794127
BaseRepresentation
bin1000011101000100000111
311011121001110
420131010013
51031404244
6115300103
724560136
oct10350407
94147043
102216199
111284077
128aa633
135c797b
1441991d
152db9b9
hex21d107

2216199 has 8 divisors (see below), whose sum is σ = 2972160. Its totient is φ = 1468856.

The previous prime is 2216197. The next prime is 2216213. The reversal of 2216199 is 9916122.

It is a happy number.

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 2216199 - 21 = 2216197 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216197) 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, 1527 + ... + 2600.

It is an arithmetic number, because the mean of its divisors is an integer number (371520).

22216199 is an apocalyptic number.

2216199 is a deficient number, since it is larger than the sum of its proper divisors (755961).

2216199 is a wasteful number, since it uses less digits than its factorization.

2216199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4309.

The product of its digits is 1944, while the sum is 30.

The square root of 2216199 is about 1488.6903640449. The cubic root of 2216199 is about 130.3775807682.

It can be divided in two parts, 2216 and 199, that added together give a triangular number (2415 = T69).

The spelling of 2216199 in words is "two million, two hundred sixteen thousand, one hundred ninety-nine".

Divisors: 1 3 179 537 4127 12381 738733 2216199