Base | Representation |
---|---|
bin | 111111011011001100… |
… | …101101111001110000 |
3 | 20111210011000202201100 |
4 | 333123030231321300 |
5 | 2103433111202423 |
6 | 51141411204400 |
7 | 4630426621620 |
oct | 773314557160 |
9 | 214704022640 |
10 | 68102053488 |
11 | 26977919837 |
12 | 112472a6700 |
13 | 6564182691 |
14 | 3420924880 |
15 | 1b88bab343 |
hex | fdb32de70 |
68102053488 has 120 divisors (see below), whose sum is σ = 225329551200. Its totient is φ = 18786765312.
The previous prime is 68102053471. The next prime is 68102053493. The reversal of 68102053488 is 88435020186.
68102053488 is a `hidden beast` number, since 6 + 8 + 10 + 20 + 534 + 88 = 666.
It is a super-3 number, since 3×681020534883 (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1135623 + ... + 1194086.
It is an arithmetic number, because the mean of its divisors is an integer number (1877746260).
Almost surely, 268102053488 is an apocalyptic number.
It is an amenable number.
68102053488 is an abundant number, since it is smaller than the sum of its proper divisors (157227497712).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68102053488 is a wasteful number, since it uses less digits than its factorization.
68102053488 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2329759 (or 2329750 counting only the distinct ones).
The product of its (nonzero) digits is 368640, while the sum is 45.
The spelling of 68102053488 in words is "sixty-eight billion, one hundred two million, fifty-three thousand, four hundred eighty-eight".
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