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53723497984 = 291331237227
BaseRepresentation
bin110010000010001010…
…111000011000000000
312010200002020110121121
4302002022320120000
51340011203413414
640402533002024
73611214125002
oct620212703000
9163602213547
1053723497984
1120869572212
12a4b3a83314
1350b22ccc80
14285906a372
1515e66ed724
hexc822b8600

53723497984 has 240 divisors, whose sum is σ = 123217207344. Its totient is φ = 23244226560.

The previous prime is 53723497913. The next prime is 53723497987. The reversal of 53723497984 is 48979432735.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53723497987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 236667279 + ... + 236667505.

Almost surely, 253723497984 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 53723497984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61608603672).

53723497984 is an abundant number, since it is smaller than the sum of its proper divisors (69493709360).

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

53723497984 is a wasteful number, since it uses less digits than its factorization.

53723497984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357 (or 310 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 61.

The spelling of 53723497984 in words is "fifty-three billion, seven hundred twenty-three million, four hundred ninety-seven thousand, nine hundred eighty-four".