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220764105 = 3254905869
BaseRepresentation
bin11010010100010…
…01011111001001
3120101101222102100
431022021133021
5423003422410
633523424013
75320315062
oct1512113711
9511358370
10220764105
11103685381
1261b25009
1336977463
1421469569
15145ab8c0
hexd2897c9

220764105 has 12 divisors (see below), whose sum is σ = 382657860. Its totient is φ = 117740832.

The previous prime is 220764067. The next prime is 220764121. The reversal of 220764105 is 501467022.

220764105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 58660281 + 162103824 = 7659^2 + 12732^2 .

It is not a de Polignac number, because 220764105 - 211 = 220762057 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2452890 + ... + 2452979.

It is an arithmetic number, because the mean of its divisors is an integer number (31888155).

Almost surely, 2220764105 is an apocalyptic number.

It is an amenable number.

220764105 is a deficient number, since it is larger than the sum of its proper divisors (161893755).

220764105 is a wasteful number, since it uses less digits than its factorization.

220764105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4905880 (or 4905877 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 220764105 is about 14858.1326215645. The cubic root of 220764105 is about 604.3791687099.

The spelling of 220764105 in words is "two hundred twenty million, seven hundred sixty-four thousand, one hundred five".

Divisors: 1 3 5 9 15 45 4905869 14717607 24529345 44152821 73588035 220764105