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15005010005 = 53001002001
BaseRepresentation
bin11011111100101111…
…00100100001010101
31102201201120111010022
431332113210201111
5221212240310010
610520533234525
71040560323566
oct157627444125
942651514108
1015005010005
1163aaa34117
122aa9192a45
1315518b155b
14a24b6a16d
155cc4a3d55
hex37e5e4855

15005010005 has 4 divisors (see below), whose sum is σ = 18006012012. Its totient is φ = 12004008000.

The previous prime is 15005010001. The next prime is 15005010037. The reversal of 15005010005 is 50001050051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50001050051 = 447531117267.

It can be written as a sum of positive squares in 2 ways, for example, as 4778542129 + 10226467876 = 69127^2 + 101126^2 .

It is not a de Polignac number, because 15005010005 - 22 = 15005010001 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 (15005010001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1500500996 + ... + 1500501005.

It is an arithmetic number, because the mean of its divisors is an integer number (4501503003).

Almost surely, 215005010005 is an apocalyptic number.

It is an amenable number.

15005010005 is a deficient number, since it is larger than the sum of its proper divisors (3001002007).

15005010005 is an equidigital number, since it uses as much as digits as its factorization.

15005010005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3001002006.

The product of its (nonzero) digits is 125, while the sum is 17.

Adding to 15005010005 its reverse (50001050051), we get a palindrome (65006060056).

The spelling of 15005010005 in words is "fifteen billion, five million, ten thousand, five".

Divisors: 1 5 3001002001 15005010005