Search a number
-
+
6490784 = 25238819
BaseRepresentation
bin11000110000101010100000
3110012202200102
4120300222200
53130201114
6351041532
7106112366
oct30605240
913182612
106490784
113733693
1222102a8
131463501
14c0d636
158832de
hex630aa0

6490784 has 24 divisors (see below), whose sum is σ = 13335840. Its totient is φ = 3103936.

The previous prime is 6490777. The next prime is 6490793. The reversal of 6490784 is 4870946.

It is a happy 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, 3674 + ... + 5145.

It is an arithmetic number, because the mean of its divisors is an integer number (555660).

Almost surely, 26490784 is an apocalyptic number.

It is an amenable number.

6490784 is an abundant number, since it is smaller than the sum of its proper divisors (6845056).

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

6490784 is a wasteful number, since it uses less digits than its factorization.

With its successor (6490785) it forms an eRAP, since the sums of their prime factors are consecutive (8852 and 8853).

6490784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8852 (or 8844 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 6490784 is about 2547.7017093844. The cubic root of 6490784 is about 186.5373140125.

The spelling of 6490784 in words is "six million, four hundred ninety thousand, seven hundred eighty-four".

Divisors: 1 2 4 8 16 23 32 46 92 184 368 736 8819 17638 35276 70552 141104 202837 282208 405674 811348 1622696 3245392 6490784