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811325740 = 22540566287
BaseRepresentation
bin110000010110111…
…101100100101100
32002112122121200111
4300112331210230
53130144410430
6212301305404
726051104111
oct6026754454
92075577614
10811325740
11386a77045
121a7865264
13cc11a004
1479a76908
154b362c2a
hex305bd92c

811325740 has 12 divisors (see below), whose sum is σ = 1703784096. Its totient is φ = 324530288.

The previous prime is 811325719. The next prime is 811325743. The reversal of 811325740 is 47523118.

811325740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (811325743) 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, 20283124 + ... + 20283163.

It is an arithmetic number, because the mean of its divisors is an integer number (141982008).

Almost surely, 2811325740 is an apocalyptic number.

It is an amenable number.

811325740 is an abundant number, since it is smaller than the sum of its proper divisors (892458356).

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

811325740 is a wasteful number, since it uses less digits than its factorization.

811325740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40566296 (or 40566294 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 811325740 is about 28483.7802968637. The cubic root of 811325740 is about 932.6780403101.

Adding to 811325740 its reverse (47523118), we get a palindrome (858848858).

The spelling of 811325740 in words is "eight hundred eleven million, three hundred twenty-five thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 40566287 81132574 162265148 202831435 405662870 811325740