Search a number
-
+
5781388 = 227120357
BaseRepresentation
bin10110000011011110001100
3101212201120111
4112003132030
52440001023
6323525404
7100066234
oct26033614
911781514
105781388
113299708
121b29864
131275652
14aa6cc4
1579300d
hex58378c

5781388 has 12 divisors (see below), whose sum is σ = 10260432. Its totient is φ = 2849840.

The previous prime is 5781383. The next prime is 5781409. The reversal of 5781388 is 8831875.

It is a self number, because there is not a number n which added to its sum of digits gives 5781388.

It is not an unprimeable number, because it can be changed into a prime (5781383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9895 + ... + 10462.

It is an arithmetic number, because the mean of its divisors is an integer number (855036).

Almost surely, 25781388 is an apocalyptic number.

It is an amenable number.

5781388 is a deficient number, since it is larger than the sum of its proper divisors (4479044).

5781388 is a wasteful number, since it uses less digits than its factorization.

5781388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20432 (or 20430 counting only the distinct ones).

The product of its digits is 53760, while the sum is 40.

The square root of 5781388 is about 2404.4517046512. The cubic root of 5781388 is about 179.4777868401.

The spelling of 5781388 in words is "five million, seven hundred eighty-one thousand, three hundred eighty-eight".

Divisors: 1 2 4 71 142 284 20357 40714 81428 1445347 2890694 5781388