Base | Representation |
---|---|
bin | 1000000110111… |
… | …10001101111111 |
3 | 11201222201121212 |
4 | 10003132031333 |
5 | 114403102241 |
6 | 10425515035 |
7 | 1454103221 |
oct | 403361577 |
9 | 151881555 |
10 | 68019071 |
11 | 3543880a |
12 | 1a942a7b |
13 | 11126c93 |
14 | 9068411 |
15 | 5e88beb |
hex | 40de37f |
68019071 has 8 divisors (see below), whose sum is σ = 68584320. Its totient is φ = 67456672.
The previous prime is 68019067. The next prime is 68019089. The reversal of 68019071 is 17091086.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 68019071 - 22 = 68019067 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68010071) 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, 78386 + ... + 79248.
It is an arithmetic number, because the mean of its divisors is an integer number (8573040).
Almost surely, 268019071 is an apocalyptic number.
68019071 is a deficient number, since it is larger than the sum of its proper divisors (565249).
68019071 is a wasteful number, since it uses less digits than its factorization.
68019071 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1425.
The product of its (nonzero) digits is 3024, while the sum is 32.
The square root of 68019071 is about 8247.3675193967. The cubic root of 68019071 is about 408.2036640979.
The spelling of 68019071 in words is "sixty-eight million, nineteen thousand, seventy-one".
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