Base | Representation |
---|---|
bin | 1000001011001… |
… | …11101000011010 |
3 | 11210001022200220 |
4 | 10011213220122 |
5 | 120024110124 |
6 | 10445540510 |
7 | 1461636162 |
oct | 405475032 |
9 | 153038626 |
10 | 68581914 |
11 | 35792675 |
12 | 1ab74736 |
13 | 1129321b |
14 | 91735a2 |
15 | 604a879 |
hex | 4167a1a |
68581914 has 8 divisors (see below), whose sum is σ = 137163840. Its totient is φ = 22860636.
The previous prime is 68581907. The next prime is 68581943. The reversal of 68581914 is 41918586.
It is a sphenic number, since it is the product of 3 distinct primes.
68581914 is an admirable number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5715154 + ... + 5715165.
It is an arithmetic number, because the mean of its divisors is an integer number (17145480).
Almost surely, 268581914 is an apocalyptic number.
68581914 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68581914 is a wasteful number, since it uses less digits than its factorization.
68581914 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11430324.
The product of its digits is 69120, while the sum is 42.
The square root of 68581914 is about 8281.4198058062. The cubic root of 68581914 is about 409.3265048240.
The spelling of 68581914 in words is "sixty-eight million, five hundred eighty-one thousand, nine hundred fourteen".
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