Base | Representation |
---|---|
bin | 1000001000010… |
… | …10011011010101 |
3 | 11202022221000110 |
4 | 10010022123111 |
5 | 114424401044 |
6 | 10433433233 |
7 | 1455456153 |
oct | 404123325 |
9 | 152287013 |
10 | 68200149 |
11 | 35551866 |
12 | 1aa0b819 |
13 | 1118b524 |
14 | 90b43d3 |
15 | 5ec26b9 |
hex | 410a6d5 |
68200149 has 16 divisors (see below), whose sum is σ = 93807360. Its totient is φ = 44049600.
The previous prime is 68200109. The next prime is 68200157. The reversal of 68200149 is 94100286.
It is not a de Polignac number, because 68200149 - 223 = 59811541 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68200109) 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 15 ways as a sum of consecutive naturals, for example, 11847 + ... + 16635.
It is an arithmetic number, because the mean of its divisors is an integer number (5862960).
Almost surely, 268200149 is an apocalyptic number.
It is an amenable number.
68200149 is a deficient number, since it is larger than the sum of its proper divisors (25607211).
68200149 is a wasteful number, since it uses less digits than its factorization.
68200149 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4940.
The product of its (nonzero) digits is 3456, while the sum is 30.
The square root of 68200149 is about 8258.3381500154. The cubic root of 68200149 is about 408.5655783180.
The spelling of 68200149 in words is "sixty-eight million, two hundred thousand, one hundred forty-nine".
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