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15040105345 = 53008021069
BaseRepresentation
bin11100000000111010…
…11100101110000001
31102211011121111212201
432000131130232001
5221300231332340
610524225353201
71041464533426
oct160035345601
942734544781
1015040105345
116418824831
122ab8a98801
131558c4b825
14a296a3d4d
155d05d779a
hex38075cb81

15040105345 has 4 divisors (see below), whose sum is σ = 18048126420. Its totient is φ = 12032084272.

The previous prime is 15040105303. The next prime is 15040105349. The reversal of 15040105345 is 54350104051.

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 7745408064 + 7294697281 = 88008^2 + 85409^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-15040105345 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15040105349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1504010530 + ... + 1504010539.

It is an arithmetic number, because the mean of its divisors is an integer number (4512031605).

Almost surely, 215040105345 is an apocalyptic number.

It is an amenable number.

15040105345 is a deficient number, since it is larger than the sum of its proper divisors (3008021075).

15040105345 is an equidigital number, since it uses as much as digits as its factorization.

15040105345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3008021074.

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 15040105345 its reverse (54350104051), we get a palindrome (69390209396).

The spelling of 15040105345 in words is "fifteen billion, forty million, one hundred five thousand, three hundred forty-five".

Divisors: 1 5 3008021069 15040105345