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53243300000000 = 28581197499
BaseRepresentation
bin11000001101100101010111…
…11110111011000100000000
320222112000021010022010120002
430012302223332323010000
523434314234300000000
6305123345004135132
714133462415515245
oct1406625376730400
9228460233263502
1053243300000000
1115a683a1888930
125b7aaa95374a8
132392a8b206906
14d20dbd1695cc
15624ea8db28d5
hex306cabfbb100

53243300000000 has 648 divisors, whose sum is σ = 146712815508000. Its totient is φ = 19123200000000.

The previous prime is 53243299999997. The next prime is 53243300000003. The reversal of 53243300000000 is 334235.

It is an interprime number because it is at equal distance from previous prime (53243299999997) and next prime (53243300000003).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (53243300000003) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 106699999751 + ... + 106700000249.

Almost surely, 253243300000000 is an apocalyptic number.

53243300000000 is a gapful number since it is divisible by the number (50) 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 53243300000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73356407754000).

53243300000000 is an abundant number, since it is smaller than the sum of its proper divisors (93469515508000).

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

53243300000000 is an frugal number, since it uses more digits than its factorization.

53243300000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663 (or 614 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 20.

Adding to 53243300000000 its reverse (334235), we get a palindrome (53243300334235).

The spelling of 53243300000000 in words is "fifty-three trillion, two hundred forty-three billion, three hundred million", and thus it is an aban number.