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121286486316 = 223233071431413
BaseRepresentation
bin111000011110100111…
…1001110100100101100
3102121001122220212221210
41300331033032210230
53441343320030231
6131415050154420
711522410060242
oct1607517164454
9377048825853
10121286486316
114748a072356
121b60a722a10
13b58b8a0388
145c2814a792
15324cdc6a46
hex1c3d3ce92c

121286486316 has 48 divisors (see below), whose sum is σ = 296268344064. Its totient is φ = 38545062336.

The previous prime is 121286486311. The next prime is 121286486327. The reversal of 121286486316 is 613684682121.

It is not an unprimeable number, because it can be changed into a prime (121286486311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 630975 + ... + 800438.

It is an arithmetic number, because the mean of its divisors is an integer number (6172257168).

Almost surely, 2121286486316 is an apocalyptic number.

It is an amenable number.

121286486316 is an abundant number, since it is smaller than the sum of its proper divisors (174981857748).

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

121286486316 is a wasteful number, since it uses less digits than its factorization.

121286486316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431750 (or 1431748 counting only the distinct ones).

The product of its digits is 663552, while the sum is 48.

The spelling of 121286486316 in words is "one hundred twenty-one billion, two hundred eighty-six million, four hundred eighty-six thousand, three hundred sixteen".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 307 614 921 1228 1842 3684 7061 14122 21183 28244 42366 84732 1431413 2862826 4294239 5725652 8588478 17176956 32922499 65844998 98767497 131689996 197534994 395069988 439443791 878887582 1318331373 1757775164 2636662746 5273325492 10107207193 20214414386 30321621579 40428828772 60643243158 121286486316