Base | Representation |
---|---|
bin | 1000001011101… |
… | …10000101100101 |
3 | 11210011022220220 |
4 | 10011312011211 |
5 | 120033004000 |
6 | 10451114553 |
7 | 1462303620 |
oct | 405660545 |
9 | 153138826 |
10 | 68641125 |
11 | 35823103 |
12 | 1aba2a59 |
13 | 112b4167 |
14 | 918adb7 |
15 | 605d1a0 |
hex | 4176165 |
68641125 has 64 divisors (see below), whose sum is σ = 132587520. Its totient is φ = 30888000.
The previous prime is 68641123. The next prime is 68641141. The reversal of 68641125 is 52114686.
It is not a de Polignac number, because 68641125 - 21 = 68641123 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68641123) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 207210 + ... + 207540.
It is an arithmetic number, because the mean of its divisors is an integer number (2071680).
Almost surely, 268641125 is an apocalyptic number.
It is an amenable number.
68641125 is a deficient number, since it is larger than the sum of its proper divisors (63946395).
68641125 is a wasteful number, since it uses less digits than its factorization.
68641125 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 435 (or 425 counting only the distinct ones).
The product of its digits is 11520, while the sum is 33.
The square root of 68641125 is about 8284.9939649948. The cubic root of 68641125 is about 409.4442698858. Note that the first 3 decimals are identical.
The spelling of 68641125 in words is "sixty-eight million, six hundred forty-one thousand, one hundred twenty-five".
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