Search a number
-
+
5787220 = 225289361
BaseRepresentation
bin10110000100111001010100
3101220000120111
4112010321110
52440142340
6324012404
7100122235
oct26047124
911800514
105787220
1132a302a
121b31104
1312781ba
14aa908c
15794aea
hex584e54

5787220 has 12 divisors (see below), whose sum is σ = 12153204. Its totient is φ = 2314880.

The previous prime is 5787217. The next prime is 5787247. The reversal of 5787220 is 227875.

It can be written as a sum of positive squares in 2 ways, for example, as 4112784 + 1674436 = 2028^2 + 1294^2 .

It is an Ulam number.

It is a congruent 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, 144661 + ... + 144700.

It is an arithmetic number, because the mean of its divisors is an integer number (1012767).

Almost surely, 25787220 is an apocalyptic number.

It is an amenable number.

5787220 is an abundant number, since it is smaller than the sum of its proper divisors (6365984).

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

5787220 is a wasteful number, since it uses less digits than its factorization.

5787220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289370 (or 289368 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 5787220 is about 2405.6641494606. The cubic root of 5787220 is about 179.5381162218.

The spelling of 5787220 in words is "five million, seven hundred eighty-seven thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 289361 578722 1157444 1446805 2893610 5787220