Base | Representation |
---|---|
bin | 1000001011100… |
… | …00111111001101 |
3 | 11210010021021021 |
4 | 10011300333031 |
5 | 120031321422 |
6 | 10450434141 |
7 | 1462156000 |
oct | 405607715 |
9 | 153107237 |
10 | 68620237 |
11 | 35809444 |
12 | 1ab92951 |
13 | 112a77ba |
14 | 9183537 |
15 | 6056dc7 |
hex | 4170fcd |
68620237 has 16 divisors (see below), whose sum is σ = 82201600. Its totient is φ = 57217104.
The previous prime is 68620207. The next prime is 68620249. The reversal of 68620237 is 73202686.
It is not a de Polignac number, because 68620237 - 211 = 68618189 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68620207) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9988 + ... + 15394.
It is an arithmetic number, because the mean of its divisors is an integer number (5137600).
Almost surely, 268620237 is an apocalyptic number.
It is an amenable number.
68620237 is a deficient number, since it is larger than the sum of its proper divisors (13581363).
68620237 is an equidigital number, since it uses as much as digits as its factorization.
68620237 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5465 (or 5451 counting only the distinct ones).
The product of its (nonzero) digits is 24192, while the sum is 34.
The square root of 68620237 is about 8283.7332767298. The cubic root of 68620237 is about 409.4027333697.
The spelling of 68620237 in words is "sixty-eight million, six hundred twenty thousand, two hundred thirty-seven".
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