Search a number
-
+
52223305212 = 223213293847871
BaseRepresentation
bin110000101000110000…
…000110010111111100
311222210112100210000100
4300220300012113330
51323423131231322
635554022401100
73526066525101
oct605060062774
9158715323010
1052223305212
1120169770181
12a155590190
134c03571040
142755b16aa8
151559b66dac
hexc28c065fc

52223305212 has 72 divisors (see below), whose sum is σ = 147065667840. Its totient is φ = 15514611840.

The previous prime is 52223305187. The next prime is 52223305213. The reversal of 52223305212 is 21250332225.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52223305213) 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, 1910364 + ... + 1937507.

It is an arithmetic number, because the mean of its divisors is an integer number (2042578720).

Almost surely, 252223305212 is an apocalyptic number.

52223305212 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

52223305212 is an abundant number, since it is smaller than the sum of its proper divisors (94842362628).

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

52223305212 is a wasteful number, since it uses less digits than its factorization.

52223305212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3847923 (or 3847918 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 52223305212 its reverse (21250332225), we get a palindrome (73473637437).

It can be divided in two parts, 52223 and 305212, that added together give a triangular number (357435 = T845).

The spelling of 52223305212 in words is "fifty-two billion, two hundred twenty-three million, three hundred five thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 13 18 26 29 36 39 52 58 78 87 116 117 156 174 234 261 348 377 468 522 754 1044 1131 1508 2262 3393 4524 6786 13572 3847871 7695742 11543613 15391484 23087226 34630839 46174452 50022323 69261678 100044646 111588259 138523356 150066969 200089292 223176518 300133938 334764777 446353036 450200907 600267876 669529554 900401814 1004294331 1339059108 1450647367 1800803628 2008588662 2901294734 4017177324 4351942101 5802589468 8703884202 13055826303 17407768404 26111652606 52223305212