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2013303205 = 5402660641
BaseRepresentation
bin111100000000000…
…1001000110100101
312012022101101210101
41320000021012211
513110401200310
6531440024101
7100614536434
oct17000110645
95168341711
102013303205
11943503551
12482302031
13261154594
1415155d11b
15bbb3e43a
hex780091a5

2013303205 has 4 divisors (see below), whose sum is σ = 2415963852. Its totient is φ = 1610642560.

The previous prime is 2013303203. The next prime is 2013303247. The reversal of 2013303205 is 5023033102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1420234596 + 593068609 = 37686^2 + 24353^2 .

It is not a de Polignac number, because 2013303205 - 21 = 2013303203 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 (2013303203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201330316 + ... + 201330325.

It is an arithmetic number, because the mean of its divisors is an integer number (603990963).

Almost surely, 22013303205 is an apocalyptic number.

It is an amenable number.

2013303205 is a deficient number, since it is larger than the sum of its proper divisors (402660647).

2013303205 is an equidigital number, since it uses as much as digits as its factorization.

2013303205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402660646.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 2013303205 is about 44869.8473922076. The cubic root of 2013303205 is about 1262.7083769375.

Adding to 2013303205 its reverse (5023033102), we get a palindrome (7036336307).

The spelling of 2013303205 in words is "two billion, thirteen million, three hundred three thousand, two hundred five".

Divisors: 1 5 402660641 2013303205