Search a number
-
+
52908220 = 22510212591
BaseRepresentation
bin1100100111010…
…1000010111100
310200120000102201
43021311002330
5102021030340
65130001244
71211466241
oct311650274
9120500381
1052908220
1127957802
1215876224
13ac66051
1470535c8
1549a179a
hex32750bc

52908220 has 24 divisors (see below), whose sum is σ = 111259008. Its totient is φ = 21134400.

The previous prime is 52908181. The next prime is 52908221. The reversal of 52908220 is 2280925.

52908220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52908221) by changing a digit.

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, 19125 + ... + 21715.

It is an arithmetic number, because the mean of its divisors is an integer number (4635792).

Almost surely, 252908220 is an apocalyptic number.

It is an amenable number.

52908220 is an abundant number, since it is smaller than the sum of its proper divisors (58350788).

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

52908220 is a wasteful number, since it uses less digits than its factorization.

52908220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3621 (or 3619 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 52908220 is about 7273.8036817060. The cubic root of 52908220 is about 375.4116250446.

The spelling of 52908220 in words is "fifty-two million, nine hundred eight thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 1021 2042 2591 4084 5105 5182 10210 10364 12955 20420 25910 51820 2645411 5290822 10581644 13227055 26454110 52908220