[go: up one dir, main page]

Search a number
-
+
5781258 = 2327172699
BaseRepresentation
bin10110000011011100001010
3101212201101200
4112003130022
52440000013
6323525030
7100065660
oct26033412
911781350
105781258
1132995aa
121b29776
131275582
14aa6c30
15792e73
hex58370a

5781258 has 48 divisors (see below), whose sum is σ = 15163200. Its totient is φ = 1554048.

The previous prime is 5781253. The next prime is 5781271. The reversal of 5781258 is 8521875.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (5781253) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 793 + ... + 3491.

It is an arithmetic number, because the mean of its divisors is an integer number (315900).

Almost surely, 25781258 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5781258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7581600).

5781258 is an abundant number, since it is smaller than the sum of its proper divisors (9381942).

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

5781258 is a wasteful number, since it uses less digits than its factorization.

5781258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2731 (or 2728 counting only the distinct ones).

The product of its digits is 22400, while the sum is 36.

The square root of 5781258 is about 2404.4246713091. The cubic root of 5781258 is about 179.4764415872.

The spelling of 5781258 in words is "five million, seven hundred eighty-one thousand, two hundred fifty-eight".

Divisors: 1 2 3 6 7 9 14 17 18 21 34 42 51 63 102 119 126 153 238 306 357 714 1071 2142 2699 5398 8097 16194 18893 24291 37786 45883 48582 56679 91766 113358 137649 170037 275298 321181 340074 412947 642362 825894 963543 1927086 2890629 5781258