Base | Representation |
---|---|
bin | 1000001100101… |
… | …01100010101101 |
3 | 11210101212122202 |
4 | 10012111202231 |
5 | 120101114330 |
6 | 10453551245 |
7 | 1463351345 |
oct | 406254255 |
9 | 153355582 |
10 | 68769965 |
11 | 35900990 |
12 | 1b045525 |
13 | 1132a9b4 |
14 | 91c1d25 |
15 | 6086445 |
hex | 41958ad |
68769965 has 16 divisors (see below), whose sum is σ = 90192960. Its totient is φ = 49921920.
The previous prime is 68769941. The next prime is 68769971. The reversal of 68769965 is 56996786.
It is not a de Polignac number, because 68769965 - 26 = 68769901 is a prime.
It is a super-2 number, since 2×687699652 = 9458616172202450, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 68769965.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46406 + ... + 47864.
It is an arithmetic number, because the mean of its divisors is an integer number (5637060).
Almost surely, 268769965 is an apocalyptic number.
It is an amenable number.
68769965 is a deficient number, since it is larger than the sum of its proper divisors (21422995).
68769965 is a wasteful number, since it uses less digits than its factorization.
68769965 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2332.
The product of its digits is 4898880, while the sum is 56.
The square root of 68769965 is about 8292.7658232944. The cubic root of 68769965 is about 409.7002866118.
The spelling of 68769965 in words is "sixty-eight million, seven hundred sixty-nine thousand, nine hundred sixty-five".
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