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2872223 = 67163263
BaseRepresentation
bin1010111101001110011111
312101220221122
422331032133
51213402343
6141321155
733261554
oct12751637
95356848
102872223
111691a42
12b661bb
13797453
1454aa2b
153bb068
hex2bd39f

2872223 has 8 divisors (see below), whose sum is σ = 2944128. Its totient is φ = 2801304.

The previous prime is 2872187. The next prime is 2872237. The reversal of 2872223 is 3222782.

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 2872223 - 210 = 2871199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2872192 and 2872201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2872283) 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, 10790 + ... + 11052.

It is an arithmetic number, because the mean of its divisors is an integer number (368016).

22872223 is an apocalyptic number.

2872223 is a deficient number, since it is larger than the sum of its proper divisors (71905).

2872223 is a wasteful number, since it uses less digits than its factorization.

2872223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493.

The product of its digits is 2688, while the sum is 26.

The square root of 2872223 is about 1694.7634053165. The cubic root of 2872223 is about 142.1475521073.

The spelling of 2872223 in words is "two million, eight hundred seventy-two thousand, two hundred twenty-three".

Divisors: 1 67 163 263 10921 17621 42869 2872223