Search a number
-
+
813750912 = 27321367811
BaseRepresentation
bin110000100000001…
…101101010000000
32002201012211101200
4300200031222000
53131310012122
6212425301200
726110524432
oct6040155200
92081184350
10813750912
11388383117
121a8634800
13cc788b20
147a108652
154b6915ac
hex3080da80

813750912 has 192 divisors, whose sum is σ = 2562574560. Its totient is φ = 246343680.

The previous prime is 813750893. The next prime is 813750937. The reversal of 813750912 is 219057318.

813750912 is a `hidden beast` number, since 8 + 137 + 509 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1002987 + ... + 1003797.

Almost surely, 2813750912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 813750912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1281287280).

813750912 is an abundant number, since it is smaller than the sum of its proper divisors (1748823648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

813750912 is a wasteful number, since it uses less digits than its factorization.

813750912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911 (or 896 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 813750912 is about 28526.3196364340. The cubic root of 813750912 is about 933.6064198623.

It can be divided in two parts, 8137 and 50912, that added together give a 10-th power (59049 = 310).

The spelling of 813750912 in words is "eight hundred thirteen million, seven hundred fifty thousand, nine hundred twelve".