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53231441536 = 2771321033413
BaseRepresentation
bin110001100100110101…
…110101011010000000
312002101210100102001201
4301210311311122000
51333004222112121
640242034310544
73563060534050
oct614465653200
9162353312051
1053231441536
1120636840999
12a397128454
135034399700
14280d981560
1515b8403e91
hexc64d75680

53231441536 has 192 divisors, whose sum is σ = 132549505920. Its totient is φ = 20848029696.

The previous prime is 53231441507. The next prime is 53231441551. The reversal of 53231441536 is 63514413235.

It is a junction number, because it is equal to n+sod(n) for n = 53231441495 and 53231441504.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15594966 + ... + 15598378.

It is an arithmetic number, because the mean of its divisors is an integer number (690362010).

Almost surely, 253231441536 is an apocalyptic number.

53231441536 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53231441536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66274752960).

53231441536 is an abundant number, since it is smaller than the sum of its proper divisors (79318064384).

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

53231441536 is a wasteful number, since it uses less digits than its factorization.

53231441536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3563 (or 3538 counting only the distinct ones).

The product of its digits is 129600, while the sum is 37.

The spelling of 53231441536 in words is "fifty-three billion, two hundred thirty-one million, four hundred forty-one thousand, five hundred thirty-six".