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51992848373760 = 211345731271439
BaseRepresentation
bin10111101001001100001110…
…10000100001100000000000
320211002110121222221212020000
423310212013100201200000
523303322323140430020
6302325103530120000
713644234152205000
oct1364460720414000
9224073558855200
1051992848373760
1115626052502268
1259b868b880000
132301b9b433238
14cba67834c000
156026bed72090
hex2f4987421800

51992848373760 has 1920 divisors, whose sum is σ = 219191132160000. Its totient is φ = 11782310658048.

The previous prime is 51992848373747. The next prime is 51992848373797. The reversal of 51992848373760 is 6737384829915.

51992848373760 is a `hidden beast` number, since 5 + 1 + 9 + 9 + 2 + 8 + 483 + 73 + 76 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1920).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 36131235121 + ... + 36131236559.

It is an arithmetic number, because the mean of its divisors is an integer number (114162048000).

It is a 2-persistent number, because it is pandigital, and so is 2⋅51992848373760 = 103985696747520, but 3⋅51992848373760 = 155978545121280 is not.

Almost surely, 251992848373760 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 51992848373760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109595566080000).

51992848373760 is an abundant number, since it is smaller than the sum of its proper divisors (167198283786240).

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

51992848373760 is a wasteful number, since it uses less digits than its factorization.

51992848373760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626 (or 1583 counting only the distinct ones).

The product of its (nonzero) digits is 548674560, while the sum is 72.

The spelling of 51992848373760 in words is "fifty-one trillion, nine hundred ninety-two billion, eight hundred forty-eight million, three hundred seventy-three thousand, seven hundred sixty".