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75000000005 = 572306122449
BaseRepresentation
bin100010111011001011…
…0010010111000000101
321011120212201202102222
41011312112102320011
52212100000000010
654242102142125
75263366324100
oct1056626227005
9234525652388
1075000000005
11298975aa087
1212651421945
1370c32a6238
1438b6ab7737
151e3e567355
hex1176592e05

75000000005 has 12 divisors (see below), whose sum is σ = 104693877900. Its totient is φ = 51428571264.

The previous prime is 75000000001. The next prime is 75000000011. The reversal of 75000000005 is 50000000057.

It can be written as a sum of positive squares in 2 ways, for example, as 49603752961 + 25396247044 = 222719^2 + 159362^2 .

It is not a de Polignac number, because 75000000005 - 22 = 75000000001 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 75000000005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75000000001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153060980 + ... + 153061469.

It is an arithmetic number, because the mean of its divisors is an integer number (8724489825).

Almost surely, 275000000005 is an apocalyptic number.

It is an amenable number.

75000000005 is a deficient number, since it is larger than the sum of its proper divisors (29693877895).

75000000005 is a wasteful number, since it uses less digits than its factorization.

75000000005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306122468 (or 306122461 counting only the distinct ones).

The product of its (nonzero) digits is 175, while the sum is 17.

The spelling of 75000000005 in words is "seventy-five billion, five", and thus it is an aban number and an uban number.

Divisors: 1 5 7 35 49 245 306122449 1530612245 2142857143 10714285715 15000000001 75000000005