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10000005005 = 52000001001
BaseRepresentation
bin10010101000000101…
…11111011110001101
3221210220202212222202
421110002333132031
5130440000130010
64332142451245
7502544432354
oct112402773615
927726685882
1010000005005
114271818851
121b30b93b25
13c349bc833
146ac16499b
153d7dae6a5
hex2540bf78d

10000005005 has 4 divisors (see below), whose sum is σ = 12000006012. Its totient is φ = 8000004000.

The previous prime is 10000004957. The next prime is 10000005139. The reversal of 10000005005 is 50050000001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50050000001 = 291725862069.

It can be written as a sum of positive squares in 2 ways, for example, as 4002586756 + 5997418249 = 63266^2 + 77443^2 .

It is not a de Polignac number, because 10000005005 - 224 = 9983227789 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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1000000496 + ... + 1000000505.

It is an arithmetic number, because the mean of its divisors is an integer number (3000001503).

Almost surely, 210000005005 is an apocalyptic number.

It is an amenable number.

10000005005 is a deficient number, since it is larger than the sum of its proper divisors (2000001007).

10000005005 is an equidigital number, since it uses as much as digits as its factorization.

10000005005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000001006.

The product of its (nonzero) digits is 25, while the sum is 11.

Adding to 10000005005 its reverse (50050000001), we get a palindrome (60050005006).

The spelling of 10000005005 in words is "ten billion, five thousand, five".

Divisors: 1 5 2000001001 10000005005