Base | Representation |
---|---|
bin | 1000001001111… |
… | …01011000101010 |
3 | 11202201112100000 |
4 | 10010331120222 |
5 | 120003040444 |
6 | 10442123430 |
7 | 1460315532 |
oct | 404753052 |
9 | 152645300 |
10 | 68408874 |
11 | 35684666 |
12 | 1aab0576 |
13 | 11232531 |
14 | 912a4c2 |
15 | 6014469 |
hex | 413d62a |
68408874 has 24 divisors (see below), whose sum is σ = 153709920. Its totient is φ = 22802796.
The previous prime is 68408861. The next prime is 68408881. The reversal of 68408874 is 47880486.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69894 + ... + 70865.
It is an arithmetic number, because the mean of its divisors is an integer number (6404580).
Almost surely, 268408874 is an apocalyptic number.
68408874 is an abundant number, since it is smaller than the sum of its proper divisors (85301046).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68408874 is a wasteful number, since it uses less digits than its factorization.
68408874 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 140776 (or 140764 counting only the distinct ones).
The product of its (nonzero) digits is 344064, while the sum is 45.
The square root of 68408874 is about 8270.9657235416. The cubic root of 68408874 is about 408.9819557122.
The spelling of 68408874 in words is "sixty-eight million, four hundred eight thousand, eight hundred seventy-four".
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