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121205705068848 = 2439539264715259
BaseRepresentation
bin11011100011110001100110…
…111111101101000100110000
3120220011011002222120200010010
4123203301212333231010300
5111341313240444200343
61105441044320534520
734346552235160041
oct3343614677550460
9526134088520103
10121205705068848
1135690061759a34
1211716589481440
13528285896885a
1421d055d1528c8
15e02c8a11bd33
hex6e3c66fed130

121205705068848 has 40 divisors (see below), whose sum is σ = 313147563969600. Its totient is φ = 40397666092864.

The previous prime is 121205705068841. The next prime is 121205705068871. The reversal of 121205705068848 is 848860507502121.

It is not an unprimeable number, because it can be changed into a prime (121205705068841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131899758 + ... + 132815501.

It is an arithmetic number, because the mean of its divisors is an integer number (7828689099240).

Almost surely, 2121205705068848 is an apocalyptic number.

It is an amenable number.

121205705068848 is an abundant number, since it is smaller than the sum of its proper divisors (191941858900752).

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

121205705068848 is a wasteful number, since it uses less digits than its factorization.

121205705068848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264724809 (or 264724803 counting only the distinct ones).

The product of its (nonzero) digits is 8601600, while the sum is 57.

The spelling of 121205705068848 in words is "one hundred twenty-one trillion, two hundred five billion, seven hundred five million, sixty-eight thousand, eight hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 9539 19078 28617 38156 57234 76312 114468 152624 228936 457872 264715259 529430518 794145777 1058861036 1588291554 2117722072 3176583108 4235444144 6353166216 12706332432 2525118855601 5050237711202 7575356566803 10100475422404 15150713133606 20200950844808 30301426267212 40401901689616 60602852534424 121205705068848