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52704159805440 = 2123351121325979
BaseRepresentation
bin10111111101111001001001…
…01110010011000000000000
320220121110122111220112011000
423332330210232103000000
523402001104402233230
6304031542354452000
714046515132465313
oct1376744456230000
9226543574815130
1052704159805440
111587a788240a00
125ab2504594000
132353c9a198a00
14d02c75a3097a
15615e51ed4b60
hex2fef24b93000

52704159805440 has 3744 divisors, whose sum is σ = 229663582848000. Its totient is φ = 11447280599040.

The previous prime is 52704159805357. The next prime is 52704159805471. The reversal of 52704159805440 is 4450895140725.

52704159805440 is a `hidden beast` number, since 5 + 2 + 7 + 0 + 4 + 1 + 5 + 98 + 0 + 544 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (3744).

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

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 667141263321 + ... + 667141263399.

Almost surely, 252704159805440 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 52704159805440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114831791424000).

52704159805440 is an abundant number, since it is smaller than the sum of its proper divisors (176959423042560).

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

52704159805440 is a wasteful number, since it uses less digits than its factorization.

52704159805440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 8064000, while the sum is 54.

The spelling of 52704159805440 in words is "fifty-two trillion, seven hundred four billion, one hundred fifty-nine million, eight hundred five thousand, four hundred forty".