Search a number
-
+
794142653 = 4119369333
BaseRepresentation
bin101111010101011…
…010011110111101
32001100022121220212
4233111122132331
53111300031103
6210445122205
725452046463
oct5725323675
92040277825
10794142653
11378300147
121a1b59365
13c86b1ac5
1477682833
1549abb7d8
hex2f55a7bd

794142653 has 4 divisors (see below), whose sum is σ = 813512028. Its totient is φ = 774773280.

The previous prime is 794142647. The next prime is 794142667. The reversal of 794142653 is 356241497.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 356241497 = 418688817.

It can be written as a sum of positive squares in 2 ways, for example, as 283518244 + 510624409 = 16838^2 + 22597^2 .

It is a cyclic number.

It is not a de Polignac number, because 794142653 - 24 = 794142637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 19369333 = 794142653 / (7 + 9 + 4 + 1 + 4 + 2 + 6 + 5 + 3).

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 794142653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (794142623) 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, 9684626 + ... + 9684707.

It is an arithmetic number, because the mean of its divisors is an integer number (203378007).

Almost surely, 2794142653 is an apocalyptic number.

It is an amenable number.

794142653 is a deficient number, since it is larger than the sum of its proper divisors (19369375).

794142653 is a wasteful number, since it uses less digits than its factorization.

794142653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19369374.

The product of its digits is 181440, while the sum is 41.

The square root of 794142653 is about 28180.5367762930. The cubic root of 794142653 is about 926.0465983762.

The spelling of 794142653 in words is "seven hundred ninety-four million, one hundred forty-two thousand, six hundred fifty-three".

Divisors: 1 41 19369333 794142653