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52302112400 = 2452130755281
BaseRepresentation
bin110000101101011100…
…101110011010010000
312000000000122121011002
4300231130232122100
51324103320044100
640005515441132
73531044422466
oct605534563220
9160000577132
1052302112400
11201aa1a718a
12a177a561a8
134c169a4505
14276238c836
151561a322d5
hexc2d72e690

52302112400 has 30 divisors (see below), whose sum is σ = 125655826002. Its totient is φ = 20920844800.

The previous prime is 52302112391. The next prime is 52302112453. The reversal of 52302112400 is 421120325.

It can be written as a sum of positive squares in 3 ways, for example, as 658640896 + 51643471504 = 25664^2 + 227252^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65377241 + ... + 65378040.

Almost surely, 252302112400 is an apocalyptic number.

52302112400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

52302112400 is an abundant number, since it is smaller than the sum of its proper divisors (73353713602).

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

52302112400 is a wasteful number, since it uses less digits than its factorization.

52302112400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130755299 (or 130755288 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 52302112400 its reverse (421120325), we get a palindrome (52723232725).

The spelling of 52302112400 in words is "fifty-two billion, three hundred two million, one hundred twelve thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 130755281 261510562 523021124 653776405 1046042248 1307552810 2092084496 2615105620 3268882025 5230211240 6537764050 10460422480 13075528100 26151056200 52302112400