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805242635061216 = 253112934807755437
BaseRepresentation
bin1011011100010111010010100…
…1001110001000011111100000
310220121010102222202022120010120
42313011310221032020133200
51321021043404033424331
611532335205410000240
7331416601106414142
oct26705645116103740
93817112882276116
10805242635061216
11213636535950530
1276391501276080
132874109312bcb1
14102bbd46c54c92
15631631ede3796
hex2dc5d293887e0

805242635061216 has 192 divisors, whose sum is σ = 2385508337210880. Its totient is φ = 235591600527360.

The previous prime is 805242635061211. The next prime is 805242635061257. The reversal of 805242635061216 is 612160536242508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805242635061211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1065551850 + ... + 1066307286.

It is an arithmetic number, because the mean of its divisors is an integer number (12424522589640).

Almost surely, 2805242635061216 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 805242635061216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1192754168605440).

805242635061216 is an abundant number, since it is smaller than the sum of its proper divisors (1580265702149664).

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

805242635061216 is a wasteful number, since it uses less digits than its factorization.

805242635061216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790297 (or 790289 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 51.

The spelling of 805242635061216 in words is "eight hundred five trillion, two hundred forty-two billion, six hundred thirty-five million, sixty-one thousand, two hundred sixteen".