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2216007287 = 13691246689
BaseRepresentation
bin1000010000010101…
…1001011001110111
312201102210211111222
42010011121121313
514014244213122
61003520420555
7105625515434
oct20405313167
95642724458
102216007287
11a3797308a
1251a17775b
13294147620
14170446b8b
15ce82eb42
hex84159677

2216007287 has 8 divisors (see below), whose sum is σ = 2389932720. Its totient is φ = 2042576640.

The previous prime is 2216007271. The next prime is 2216007347. The reversal of 2216007287 is 7827006122.

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

It is not a de Polignac number, because 2216007287 - 24 = 2216007271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216007257) 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, 114362 + ... + 132327.

It is an arithmetic number, because the mean of its divisors is an integer number (298741590).

Almost surely, 22216007287 is an apocalyptic number.

2216007287 is a deficient number, since it is larger than the sum of its proper divisors (173925433).

2216007287 is a wasteful number, since it uses less digits than its factorization.

2216007287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247393.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 2216007287 is about 47074.4865824366. The cubic root of 2216007287 is about 1303.7382120840.

The spelling of 2216007287 in words is "two billion, two hundred sixteen million, seven thousand, two hundred eighty-seven".

Divisors: 1 13 691 8983 246689 3206957 170462099 2216007287