Search a number
-
+
75353065 = 515070613
BaseRepresentation
bin1000111110111…
…00101111101001
312020210022222021
410133130233221
5123242244230
611251024441
71603330144
oct437345751
9166708867
1075353065
1139597967
122129b121
13127c4218
14a01705b
156936c7a
hex47dcbe9

75353065 has 4 divisors (see below), whose sum is σ = 90423684. Its totient is φ = 60282448.

The previous prime is 75353063. The next prime is 75353101. The reversal of 75353065 is 56035357.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56035357 = 78005051.

It can be written as a sum of positive squares in 2 ways, for example, as 29506624 + 45846441 = 5432^2 + 6771^2 .

It is a cyclic number.

It is not a de Polignac number, because 75353065 - 21 = 75353063 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75353065.

It is not an unprimeable number, because it can be changed into a prime (75353063) 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 3 ways as a sum of consecutive naturals, for example, 7535302 + ... + 7535311.

It is an arithmetic number, because the mean of its divisors is an integer number (22605921).

Almost surely, 275353065 is an apocalyptic number.

It is an amenable number.

75353065 is a deficient number, since it is larger than the sum of its proper divisors (15070619).

75353065 is a wasteful number, since it uses less digits than its factorization.

75353065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15070618.

The product of its (nonzero) digits is 47250, while the sum is 34.

The square root of 75353065 is about 8680.6143215789. The cubic root of 75353065 is about 422.3770448557.

The spelling of 75353065 in words is "seventy-five million, three hundred fifty-three thousand, sixty-five".

Divisors: 1 5 15070613 75353065