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1983375655536 = 24311172931245789
BaseRepresentation
bin11100110111001010011…
…001101100001001110000
321000121102212012122120110
4130313022121230021300
5224443423131434121
64115052235341320
7263202616623342
oct34671231541160
97017385178513
101983375655536
116a516593a830
122804845b1840
1311505433a862
146bdd2a39292
15368d37aad76
hex1cdca66c270

1983375655536 has 320 divisors, whose sum is σ = 6319909785600. Its totient is φ = 528542515200.

The previous prime is 1983375655531. The next prime is 1983375655537. The reversal of 1983375655536 is 6355565733891.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1983375655531) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7946530 + ... + 8192318.

It is an arithmetic number, because the mean of its divisors is an integer number (19749718080).

Almost surely, 21983375655536 is an apocalyptic number.

1983375655536 is a gapful number since it is divisible by the number (16) 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 1983375655536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3159954892800).

1983375655536 is an abundant number, since it is smaller than the sum of its proper divisors (4336534130064).

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

1983375655536 is a wasteful number, since it uses less digits than its factorization.

1983375655536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245888 (or 245882 counting only the distinct ones).

The product of its digits is 306180000, while the sum is 66.

The spelling of 1983375655536 in words is "one trillion, nine hundred eighty-three billion, three hundred seventy-five million, six hundred fifty-five thousand, five hundred thirty-six".