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2104424405 = 51210134781
BaseRepresentation
bin111110101101110…
…1111011111010101
312102122211211120122
41331123233133111
513302213040110
6544453041325
7103102212056
oct17533573725
95378754518
102104424405
1198a990226
124a8926245
13276ca9955
1415d6bc72d
15c4b3d255
hex7d6ef7d5

2104424405 has 8 divisors (see below), whose sum is σ = 2525590584. Its totient is φ = 1683352000.

The previous prime is 2104424381. The next prime is 2104424423. The reversal of 2104424405 is 5044244012.

It can be written as a sum of positive squares in 4 ways, for example, as 720063556 + 1384360849 = 26834^2 + 37207^2 .

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

It is not a de Polignac number, because 2104424405 - 28 = 2104424149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43115 + ... + 77895.

It is an arithmetic number, because the mean of its divisors is an integer number (315698823).

Almost surely, 22104424405 is an apocalyptic number.

It is an amenable number.

2104424405 is a deficient number, since it is larger than the sum of its proper divisors (421166179).

2104424405 is a wasteful number, since it uses less digits than its factorization.

2104424405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46887.

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 2104424405 is about 45874.0057657929. The cubic root of 2104424405 is about 1281.4778676059.

Adding to 2104424405 its reverse (5044244012), we get a palindrome (7148668417).

The spelling of 2104424405 in words is "two billion, one hundred four million, four hundred twenty-four thousand, four hundred five".

Divisors: 1 5 12101 34781 60505 173905 420884881 2104424405