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75041261568 = 211357131657
BaseRepresentation
bin100010111100011001…
…1101100100000000000
321011200202101001200000
41011320303230200000
52212141030332233
654250134400000
75264410125150
oct1057063544000
9234622331600
1075041261568
1129908921549
1212663200000
1370cb9c2070
1438bc378760
151e42eb7d13
hex1178cec800

75041261568 has 576 divisors, whose sum is σ = 276794743680. Its totient is φ = 19779158016.

The previous prime is 75041261563. The next prime is 75041261597. The reversal of 75041261568 is 86516214057.

75041261568 is a `hidden beast` number, since 7 + 504 + 126 + 15 + 6 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is not an unprimeable number, because it can be changed into a prime (75041261563) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45286596 + ... + 45288252.

It is an arithmetic number, because the mean of its divisors is an integer number (480546430).

Almost surely, 275041261568 is an apocalyptic number.

75041261568 is a gapful number since it is divisible by the number (78) 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 75041261568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138397371840).

75041261568 is an abundant number, since it is smaller than the sum of its proper divisors (201753482112).

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

75041261568 is a wasteful number, since it uses less digits than its factorization.

75041261568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714 (or 1682 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 75041261568 in words is "seventy-five billion, forty-one million, two hundred sixty-one thousand, five hundred sixty-eight".