Base | Representation |
---|---|
bin | 100000000111100001… |
… | …0101101010110001110 |
3 | 20121000202200202101000 |
4 | 1000033002231112032 |
5 | 2112223243020011 |
6 | 51404002001130 |
7 | 4661121003141 |
oct | 1001702552616 |
9 | 217022622330 |
10 | 68971845006 |
11 | 27283898aa9 |
12 | 1144a6461a6 |
13 | 667243020c |
14 | 34a425a058 |
15 | 1bda21c356 |
hex | 100f0ad58e |
68971845006 has 32 divisors (see below), whose sum is σ = 158214988800. Its totient is φ = 22248981720.
The previous prime is 68971844971. The next prime is 68971845017. The reversal of 68971845006 is 60054817986.
68971845006 is a `hidden beast` number, since 68 + 9 + 71 + 8 + 4 + 500 + 6 = 666.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a congruent number.
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, 20599236 + ... + 20602583.
It is an arithmetic number, because the mean of its divisors is an integer number (4944218400).
Almost surely, 268971845006 is an apocalyptic number.
68971845006 is an abundant number, since it is smaller than the sum of its proper divisors (89243143794).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68971845006 is a wasteful number, since it uses less digits than its factorization.
68971845006 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 41201861 (or 41201855 counting only the distinct ones).
The product of its (nonzero) digits is 2903040, while the sum is 54.
The spelling of 68971845006 in words is "sixty-eight billion, nine hundred seventy-one million, eight hundred forty-five thousand, six".
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