Base | Representation |
---|---|
bin | 1000001100000… |
… | …11110011010001 |
3 | 11210021011222100 |
4 | 10012003303101 |
5 | 120041303142 |
6 | 10452231013 |
7 | 1462626444 |
oct | 406036321 |
9 | 153234870 |
10 | 68697297 |
11 | 35861329 |
12 | 1b00b469 |
13 | 113038b6 |
14 | 91a365b |
15 | 606eb4c |
hex | 4183cd1 |
68697297 has 12 divisors (see below), whose sum is σ = 103544064. Its totient is φ = 43806840.
The previous prime is 68697269. The next prime is 68697301. The reversal of 68697297 is 79279686.
It is not a de Polignac number, because 68697297 - 218 = 68435153 is a prime.
It is not an unprimeable number, because it can be changed into a prime (68697997) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165729 + ... + 166142.
It is an arithmetic number, because the mean of its divisors is an integer number (8628672).
Almost surely, 268697297 is an apocalyptic number.
It is an amenable number.
68697297 is a deficient number, since it is larger than the sum of its proper divisors (34846767).
68697297 is a wasteful number, since it uses less digits than its factorization.
68697297 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 331900 (or 331897 counting only the distinct ones).
The product of its digits is 2286144, while the sum is 54.
The square root of 68697297 is about 8288.3832561001. The cubic root of 68697297 is about 409.5559280820. Note that the first 3 decimals are identical.
The spelling of 68697297 in words is "sixty-eight million, six hundred ninety-seven thousand, two hundred ninety-seven".
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