Base | Representation |
---|---|
bin | 111111110011110000… |
… | …010101010001100111 |
3 | 20112211212021000001112 |
4 | 333303300111101213 |
5 | 2110304043333413 |
6 | 51250325415235 |
7 | 4643561520311 |
oct | 776360252147 |
9 | 215755230045 |
10 | 68514042983 |
11 | 27069433621 |
12 | 1134126a51b |
13 | 65cb631249 |
14 | 345d52a7b1 |
15 | 1baee3c2a8 |
hex | ff3c15467 |
68514042983 has 4 divisors (see below), whose sum is σ = 68539487208. Its totient is φ = 68488598760.
The previous prime is 68514042953. The next prime is 68514043009. The reversal of 68514042983 is 38924041586.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 68514042983 - 226 = 68446934119 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 (68514042943) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12718073 + ... + 12723458.
It is an arithmetic number, because the mean of its divisors is an integer number (17134871802).
Almost surely, 268514042983 is an apocalyptic number.
68514042983 is a deficient number, since it is larger than the sum of its proper divisors (25444225).
68514042983 is a wasteful number, since it uses less digits than its factorization.
68514042983 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25444224.
The product of its (nonzero) digits is 1658880, while the sum is 50.
The spelling of 68514042983 in words is "sixty-eight billion, five hundred fourteen million, forty-two thousand, nine hundred eighty-three".
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