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641076874704 = 243373143359443
BaseRepresentation
bin10010101010000110010…
…10001100110111010000
32021021201202020111101000
421111003022030313100
541000411134442304
61210301234142000
764213324345140
oct11250312146720
92237652214330
10641076874704
11227974201532
12a42b3421900
13485b7b54926
1423057890920
1511a2116d939
hex954328cdd0

641076874704 has 640 divisors, whose sum is σ = 2232542822400. Its totient is φ = 172262039040.

The previous prime is 641076874693. The next prime is 641076874709. The reversal of 641076874704 is 407478670146.

641076874704 is a `hidden beast` number, since 6 + 4 + 107 + 68 + 7 + 470 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641076874709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1447125907 + ... + 1447126349.

It is an arithmetic number, because the mean of its divisors is an integer number (3488348160).

Almost surely, 2641076874704 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 641076874704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1116271411200).

641076874704 is an abundant number, since it is smaller than the sum of its proper divisors (1591465947696).

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

641076874704 is a wasteful number, since it uses less digits than its factorization.

641076874704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900 (or 888 counting only the distinct ones).

The product of its (nonzero) digits is 6322176, while the sum is 54.

The spelling of 641076874704 in words is "six hundred forty-one billion, seventy-six million, eight hundred seventy-four thousand, seven hundred four".