Base | Representation |
---|---|
bin | 1111100001101… |
… | …1110100001001 |
3 | 11112112201120210 |
4 | 3320123310021 |
5 | 113133010031 |
6 | 10243511333 |
7 | 1420362450 |
oct | 370336411 |
9 | 145481523 |
10 | 65125641 |
11 | 33841949 |
12 | 19988549 |
13 | 10652ca9 |
14 | 8913b97 |
15 | 5ab6746 |
hex | 3e1bd09 |
65125641 has 16 divisors (see below), whose sum is σ = 99876224. Its totient is φ = 36975744.
The previous prime is 65125633. The next prime is 65125651. The reversal of 65125641 is 14652156.
It is not a de Polignac number, because 65125641 - 23 = 65125633 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 65125599 and 65125608.
It is not an unprimeable number, because it can be changed into a prime (65125601) 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, 6580 + ... + 13173.
It is an arithmetic number, because the mean of its divisors is an integer number (6242264).
Almost surely, 265125641 is an apocalyptic number.
It is an amenable number.
65125641 is a deficient number, since it is larger than the sum of its proper divisors (34750583).
65125641 is a wasteful number, since it uses less digits than its factorization.
65125641 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19920.
The product of its digits is 7200, while the sum is 30.
The square root of 65125641 is about 8070.0459106501. The cubic root of 65125641 is about 402.3314696373.
Adding to 65125641 its reverse (14652156), we get a palindrome (79777797).
The spelling of 65125641 in words is "sixty-five million, one hundred twenty-five thousand, six hundred forty-one".
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