Base | Representation |
---|---|
bin | 1000001101110… |
… | …01100011110000 |
3 | 11210200101000120 |
4 | 10012321203300 |
5 | 120120324423 |
6 | 10501050240 |
7 | 1464534423 |
oct | 406714360 |
9 | 153611016 |
10 | 68917488 |
11 | 359a1802 |
12 | 1b0b6980 |
13 | 1137cba3 |
14 | 921d9ba |
15 | 60b4ee3 |
hex | 41b98f0 |
68917488 has 40 divisors (see below), whose sum is σ = 178345728. Its totient is φ = 22932672.
The previous prime is 68917477. The next prime is 68917489. The reversal of 68917488 is 88471986.
It is a self number, because there is not a number n which added to its sum of digits gives 68917488.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68917489) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42745 + ... + 44327.
Almost surely, 268917488 is an apocalyptic number.
It is an amenable number.
68917488 is an abundant number, since it is smaller than the sum of its proper divisors (109428240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68917488 is a wasteful number, since it uses less digits than its factorization.
68917488 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2501 (or 2495 counting only the distinct ones).
The product of its digits is 774144, while the sum is 51.
The square root of 68917488 is about 8301.6557384657. The cubic root of 68917488 is about 409.9930357730.
The spelling of 68917488 in words is "sixty-eight million, nine hundred seventeen thousand, four hundred eighty-eight".
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