Base | Representation |
---|---|
bin | 11111010111110010001110… |
… | …01110011111100010000100 |
3 | 100001021002101211112221201221 |
4 | 33223321013032133202010 |
5 | 33020240243140033420 |
6 | 402420101033530124 |
7 | 20350100113050052 |
oct | 1753710716374204 |
9 | 301232354487657 |
10 | 68986959689860 |
11 | 1aa88229293213 |
12 | 78a2175273944 |
13 | 2c65599bc4724 |
14 | 1306db559d1d2 |
15 | 7e9798518caa |
hex | 3ebe4739f884 |
68986959689860 has 48 divisors (see below), whose sum is σ = 145040987863296. Its totient is φ = 27562727043072.
The previous prime is 68986959689833. The next prime is 68986959689917. The reversal of 68986959689860 is 6898695968986.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78126379 + ... + 79004461.
It is an arithmetic number, because the mean of its divisors is an integer number (3021687247152).
Almost surely, 268986959689860 is an apocalyptic number.
It is an amenable number.
68986959689860 is an abundant number, since it is smaller than the sum of its proper divisors (76054028173436).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68986959689860 is a wasteful number, since it uses less digits than its factorization.
68986959689860 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 882652 (or 882650 counting only the distinct ones).
The product of its (nonzero) digits is 174142586880, while the sum is 97.
The spelling of 68986959689860 in words is "sixty-eight trillion, nine hundred eighty-six billion, nine hundred fifty-nine million, six hundred eighty-nine thousand, eight hundred sixty".
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