Search a number
-
+
813270748 = 221791135853
BaseRepresentation
bin110000011110011…
…000011011011100
32002200022102201211
4300132120123130
53131144130443
6212411114204
726103454513
oct6036303334
92080272654
10813270748
11388085394
121a8442964
13cc64b3c4
147a02167a
154b5e919d
hex307986dc

813270748 has 12 divisors (see below), whose sum is σ = 1431176040. Its totient is φ = 404363312.

The previous prime is 813270719. The next prime is 813270797. The reversal of 813270748 is 847072318.

813270748 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×8132707482 = 1322818619104959008, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 813270748.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 567211 + ... + 568642.

It is an arithmetic number, because the mean of its divisors is an integer number (119264670).

Almost surely, 2813270748 is an apocalyptic number.

It is an amenable number.

813270748 is a deficient number, since it is larger than the sum of its proper divisors (617905292).

813270748 is a wasteful number, since it uses less digits than its factorization.

813270748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136036 (or 1136034 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 813270748 is about 28517.9022370160. The cubic root of 813270748 is about 933.4227549811.

The spelling of 813270748 in words is "eight hundred thirteen million, two hundred seventy thousand, seven hundred forty-eight".

Divisors: 1 2 4 179 358 716 1135853 2271706 4543412 203317687 406635374 813270748