Base | Representation |
---|---|
bin | 100000000111010101… |
… | …0110101001111110001 |
3 | 20121000022220202111110 |
4 | 1000032222311033301 |
5 | 2112220142222110 |
6 | 51403215503533 |
7 | 4661013544056 |
oct | 1001652651761 |
9 | 217008822443 |
10 | 68965585905 |
11 | 27280303497 |
12 | 11448527ba9 |
13 | 667104b2c8 |
14 | 34a34ab02d |
15 | 1bd98d2a20 |
hex | 100eab53f1 |
68965585905 has 32 divisors (see below), whose sum is σ = 117820302336. Its totient is φ = 34364240064.
The previous prime is 68965585817. The next prime is 68965585921. The reversal of 68965585905 is 50958556986.
It is not a de Polignac number, because 68965585905 - 226 = 68898477041 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2309587 + ... + 2339256.
It is an arithmetic number, because the mean of its divisors is an integer number (3681884448).
Almost surely, 268965585905 is an apocalyptic number.
It is an amenable number.
68965585905 is a deficient number, since it is larger than the sum of its proper divisors (48854716431).
68965585905 is a wasteful number, since it uses less digits than its factorization.
68965585905 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4648917.
The product of its (nonzero) digits is 116640000, while the sum is 66.
The spelling of 68965585905 in words is "sixty-eight billion, nine hundred sixty-five million, five hundred eighty-five thousand, nine hundred five".
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