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52440125200 = 2452131100313
BaseRepresentation
bin110000110101101011…
…001100111100010000
312000100122100101010021
4300311223030330100
51324344133001300
640031325513224
73534341465251
oct606553147420
9160318311107
1052440125200
11202700a1251
12a1b6112814
134c394671a8
142776836b28
15156dbe4d1a
hexc35accf10

52440125200 has 30 divisors (see below), whose sum is σ = 125987401754. Its totient is φ = 20976049920.

The previous prime is 52440125137. The next prime is 52440125207. The reversal of 52440125200 is 252104425.

It can be written as a sum of positive squares in 3 ways, for example, as 12074493456 + 40365631744 = 109884^2 + 200912^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (52440125207) by changing a digit.

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, 65549757 + ... + 65550556.

Almost surely, 252440125200 is an apocalyptic number.

52440125200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

52440125200 is an abundant number, since it is smaller than the sum of its proper divisors (73547276554).

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

52440125200 is a wasteful number, since it uses less digits than its factorization.

52440125200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131100331 (or 131100320 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 52440125200 its reverse (252104425), we get a palindrome (52692229625).

The spelling of 52440125200 in words is "fifty-two billion, four hundred forty million, one hundred twenty-five thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 131100313 262200626 524401252 655501565 1048802504 1311003130 2097605008 2622006260 3277507825 5244012520 6555015650 10488025040 13110031300 26220062600 52440125200