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842390686748 = 221316199820899
BaseRepresentation
bin11000100001000100110…
…01011100110000011100
32222112100122200202011202
430100202121130300130
5102300204003433443
61442553335535032
7114601140460022
oct14204231346034
92875318622152
10842390686748
112a528a644106
12117316b2a478
136158b406780
142cab424a712
1516da4b107b8
hexc42265cc1c

842390686748 has 12 divisors (see below), whose sum is σ = 1587582448200. Its totient is φ = 388795701552.

The previous prime is 842390686723. The next prime is 842390686757. The reversal of 842390686748 is 847686093248.

It is a super-3 number, since 3×8423906867483 (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8099910398 + ... + 8099910501.

It is an arithmetic number, because the mean of its divisors is an integer number (132298537350).

Almost surely, 2842390686748 is an apocalyptic number.

It is an amenable number.

842390686748 is a deficient number, since it is larger than the sum of its proper divisors (745191761452).

842390686748 is a wasteful number, since it uses less digits than its factorization.

842390686748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16199820916 (or 16199820914 counting only the distinct ones).

The product of its (nonzero) digits is 111476736, while the sum is 65.

The spelling of 842390686748 in words is "eight hundred forty-two billion, three hundred ninety million, six hundred eighty-six thousand, seven hundred forty-eight".

Divisors: 1 2 4 13 26 52 16199820899 32399641798 64799283596 210597671687 421195343374 842390686748