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52381771848 = 23337547307
BaseRepresentation
bin110000110010001100…
…100110100001001000
312000012120112201101000
4300302030212201020
51324234213144343
640021443055000
73533032500000
oct606214464110
9160176481330
1052381771848
112024016553a
12a19a671460
134c2a345893
14276cba7000
151568a19ed3
hexc32326848

52381771848 has 384 divisors, whose sum is σ = 173930803200. Its totient is φ = 14600077632.

The previous prime is 52381771847. The next prime is 52381771853. The reversal of 52381771848 is 84817718325.

52381771848 is a `hidden beast` number, since 523 + 8 + 1 + 7 + 71 + 8 + 48 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 52381771794 and 52381771803.

It is not an unprimeable number, because it can be changed into a prime (52381771847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 170624511 + ... + 170624817.

It is an arithmetic number, because the mean of its divisors is an integer number (452944800).

Almost surely, 252381771848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52381771848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86965401600).

52381771848 is an abundant number, since it is smaller than the sum of its proper divisors (121549031352).

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

52381771848 is an equidigital number, since it uses as much as digits as its factorization.

52381771848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404 (or 366 counting only the distinct ones).

The product of its digits is 3010560, while the sum is 54.

The spelling of 52381771848 in words is "fifty-two billion, three hundred eighty-one million, seven hundred seventy-one thousand, eight hundred forty-eight".