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2205214705 = 5441042941
BaseRepresentation
bin1000001101110000…
…1110011111110001
312200200111111212201
42003130032133301
514004013332310
61002453223201
7105435005251
oct20334163761
95620444781
102205214705
11a318714a1
12516631b01
13291b39095
1416cc37961
15cd8ebe3a
hex8370e7f1

2205214705 has 4 divisors (see below), whose sum is σ = 2646257652. Its totient is φ = 1764171760.

The previous prime is 2205214703. The next prime is 2205214717. The reversal of 2205214705 is 5074125022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5074125022 = 22537062511.

It can be written as a sum of positive squares in 2 ways, for example, as 1278134001 + 927080704 = 35751^2 + 30448^2 .

It is not a de Polignac number, because 2205214705 - 21 = 2205214703 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2205214703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220521466 + ... + 220521475.

It is an arithmetic number, because the mean of its divisors is an integer number (661564413).

Almost surely, 22205214705 is an apocalyptic number.

It is an amenable number.

2205214705 is a deficient number, since it is larger than the sum of its proper divisors (441042947).

2205214705 is an equidigital number, since it uses as much as digits as its factorization.

2205214705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441042946.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 2205214705 is about 46959.7136383943. The cubic root of 2205214705 is about 1301.6182421701.

Adding to 2205214705 its reverse (5074125022), we get a palindrome (7279339727).

The spelling of 2205214705 in words is "two billion, two hundred five million, two hundred fourteen thousand, seven hundred five".

Divisors: 1 5 441042941 2205214705