Search a number
-
+
564768980 = 22576936721
BaseRepresentation
bin100001101010011…
…011000011010100
31110100201020101122
4201222123003110
52124040101410
6132012543112
716665312536
oct4152330324
91410636348
10564768980
1126a885326
12139181a98
1390011939
1455015856
15348ade55
hex21a9b0d4

564768980 has 24 divisors (see below), whose sum is σ = 1187589480. Its totient is φ = 225607680.

The previous prime is 564768959. The next prime is 564769013. The reversal of 564768980 is 89867465.

It can be written as a sum of positive squares in 4 ways, for example, as 8375236 + 556393744 = 2894^2 + 23588^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2981 + ... + 33740.

It is an arithmetic number, because the mean of its divisors is an integer number (49482895).

Almost surely, 2564768980 is an apocalyptic number.

It is an amenable number.

564768980 is an abundant number, since it is smaller than the sum of its proper divisors (622820500).

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

564768980 is a wasteful number, since it uses less digits than its factorization.

564768980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37499 (or 37497 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 53.

The square root of 564768980 is about 23764.8686089362. The cubic root of 564768980 is about 826.5902501192.

It can be divided in two parts, 56476 and 8980, that added together give a palindrome (65456).

The spelling of 564768980 in words is "five hundred sixty-four million, seven hundred sixty-eight thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 769 1538 3076 3845 7690 15380 36721 73442 146884 183605 367210 734420 28238449 56476898 112953796 141192245 282384490 564768980