Search a number
-
+
52774220 = 2255349787
BaseRepresentation
bin1100100101010…
…0010101001100
310200022012121202
43021110111030
5102002233340
65123045032
71210400462
oct311242514
9120265552
1052774220
1127876064
1215810778
13ac1a065
14701a832
154976c15
hex325454c

52774220 has 24 divisors (see below), whose sum is σ = 112919184. Its totient is φ = 20710976.

The previous prime is 52774193. The next prime is 52774223. The reversal of 52774220 is 2247725.

It is not an unprimeable number, because it can be changed into a prime (52774223) 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 7 ways as a sum of consecutive naturals, for example, 23834 + ... + 25953.

It is an arithmetic number, because the mean of its divisors is an integer number (4704966).

Almost surely, 252774220 is an apocalyptic number.

It is an amenable number.

52774220 is an abundant number, since it is smaller than the sum of its proper divisors (60144964).

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

52774220 is a wasteful number, since it uses less digits than its factorization.

52774220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49849 (or 49847 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 52774220 is about 7264.5867053811. The cubic root of 52774220 is about 375.0944236299.

It can be divided in two parts, 527 and 74220, that added together give a palindrome (74747).

The spelling of 52774220 in words is "fifty-two million, seven hundred seventy-four thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 53 106 212 265 530 1060 49787 99574 199148 248935 497870 995740 2638711 5277422 10554844 13193555 26387110 52774220