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52840193237 = 1317331372169
BaseRepresentation
bin110001001101100001…
…010101110011010101
312001101112010221021222
4301031201111303111
51331204042140422
640135140420125
73550300142336
oct611541256325
9161345127258
1052840193237
1120455a03297
12a2a80a7645
134ca1300740
1427b3a1828d
151593dbd842
hexc4d855cd5

52840193237 has 16 divisors (see below), whose sum is σ = 60271187760. Its totient is φ = 45891919872.

The previous prime is 52840193221. The next prime is 52840193251. The reversal of 52840193237 is 73239104825.

It is a happy number.

52840193237 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 8 ways, for example, as 209409841 + 52630783396 = 14471^2 + 229414^2 .

It is a cyclic number.

It is not a de Polignac number, because 52840193237 - 24 = 52840193221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52840193137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 696089 + ... + 768257.

It is an arithmetic number, because the mean of its divisors is an integer number (3766949235).

Almost surely, 252840193237 is an apocalyptic number.

It is an amenable number.

52840193237 is a deficient number, since it is larger than the sum of its proper divisors (7430994523).

52840193237 is a wasteful number, since it uses less digits than its factorization.

52840193237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75512.

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 52840193237 in words is "fifty-two billion, eight hundred forty million, one hundred ninety-three thousand, two hundred thirty-seven".

Divisors: 1 13 17 221 3313 43069 56321 72169 732173 938197 1226873 15949349 239095897 3108246661 4064630249 52840193237