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52872165450 = 233521321912197
BaseRepresentation
bin110001001111011011…
…010011100001001010
312001110202022021221000
4301033123103201022
51331240233243300
640142241555430
73551135663646
oct611733234112
9161422267830
1052872165450
1120471a60505
12a2b6945b76
134ca7b16300
1427b7d7bc26
151596ad6c00
hexc4f6d384a

52872165450 has 288 divisors, whose sum is σ = 166078209600. Its totient is φ = 12328692480.

The previous prime is 52872165373. The next prime is 52872165457. The reversal of 52872165450 is 5456127825.

52872165450 is a `hidden beast` number, since 5 + 2 + 87 + 21 + 6 + 545 + 0 = 666.

52872165450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 52872165396 and 52872165405.

It is not an unprimeable number, because it can be changed into a prime (52872165457) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 4328752 + ... + 4340948.

It is an arithmetic number, because the mean of its divisors is an integer number (576660450).

Almost surely, 252872165450 is an apocalyptic number.

52872165450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 52872165450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83039104800).

52872165450 is an abundant number, since it is smaller than the sum of its proper divisors (113206044150).

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

52872165450 is a wasteful number, since it uses less digits than its factorization.

52872165450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12263 (or 12239 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 45.

The spelling of 52872165450 in words is "fifty-two billion, eight hundred seventy-two million, one hundred sixty-five thousand, four hundred fifty".