Search a number
-
+
53382781250 = 25613072
BaseRepresentation
bin110001101101110111…
…001001100101000010
312002210100010021010022
4301231313021211002
51333311443000000
640305042133442
73566606103521
oct615567114502
9162710107108
1053382781250
1120704208737
12a419951282
135059847336
142825ad84b8
1515c684a585
hexc6ddc9942

53382781250 has 42 divisors (see below), whose sum is σ = 100168073301. Its totient is φ = 21336775000.

The previous prime is 53382781241. The next prime is 53382781253. The reversal of 53382781250 is 5218728335.

53382781250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 9103258921 + 44279522329 = 95411^2 + 210427^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=163375.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53382781253) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 40843097 + ... + 40844403.

Almost surely, 253382781250 is an apocalyptic number.

53382781250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

53382781250 is a deficient number, since it is larger than the sum of its proper divisors (46785292051).

53382781250 is an frugal number, since it uses more digits than its factorization.

53382781250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2646 (or 1314 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 44.

The spelling of 53382781250 in words is "fifty-three billion, three hundred eighty-two million, seven hundred eighty-one thousand, two hundred fifty".

Divisors: 1 2 5 10 25 50 125 250 625 1250 1307 2614 3125 6250 6535 13070 15625 31250 32675 65350 163375 326750 816875 1633750 1708249 3416498 4084375 8168750 8541245 17082490 20421875 40843750 42706225 85412450 213531125 427062250 1067655625 2135311250 5338278125 10676556250 26691390625 53382781250