Base | Representation |
---|---|
bin | 1001101010100… |
… | …00001011111011 |
3 | 12122112201110222 |
4 | 10311100023323 |
5 | 131223200140 |
6 | 12013330255 |
7 | 2003034113 |
oct | 465201373 |
9 | 178481428 |
10 | 81068795 |
11 | 41841205 |
12 | 2319698b |
13 | 13a45a02 |
14 | aaa4043 |
15 | 71b55b5 |
hex | 4d502fb |
81068795 has 8 divisors (see below), whose sum is σ = 97330896. Its totient is φ = 64822816.
The previous prime is 81068789. The next prime is 81068857. The reversal of 81068795 is 59786018.
It is a happy number.
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 81068795 - 26 = 81068731 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17549 + ... + 21681.
It is an arithmetic number, because the mean of its divisors is an integer number (12166362).
Almost surely, 281068795 is an apocalyptic number.
81068795 is a deficient number, since it is larger than the sum of its proper divisors (16262101).
81068795 is a wasteful number, since it uses less digits than its factorization.
81068795 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8061.
The product of its (nonzero) digits is 120960, while the sum is 44.
The square root of 81068795 is about 9003.8211332745. The cubic root of 81068795 is about 432.7973297128.
The spelling of 81068795 in words is "eighty-one million, sixty-eight thousand, seven hundred ninety-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.019 sec. • engine limits •