Base | Representation |
---|---|
bin | 1110101000110… |
… | …1000010110101 |
3 | 11021112012021112 |
4 | 3222031002311 |
5 | 111204121000 |
6 | 10031524405 |
7 | 1343564351 |
oct | 352150265 |
9 | 137465245 |
10 | 61395125 |
11 | 31724080 |
12 | 18689705 |
13 | c947c9c |
14 | 8222461 |
15 | 55cb235 |
hex | 3a8d0b5 |
61395125 has 16 divisors (see below), whose sum is σ = 83588544. Its totient is φ = 44650000.
The previous prime is 61395121. The next prime is 61395149. The reversal of 61395125 is 52159316.
61395125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 61395125 - 22 = 61395121 is a prime.
It is a super-2 number, since 2×613951252 = 7538722747531250, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 61395091 and 61395100.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (61395121) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20951 + ... + 23700.
It is an arithmetic number, because the mean of its divisors is an integer number (5224284).
Almost surely, 261395125 is an apocalyptic number.
It is an amenable number.
61395125 is a deficient number, since it is larger than the sum of its proper divisors (22193419).
61395125 is a wasteful number, since it uses less digits than its factorization.
61395125 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 44677 (or 44667 counting only the distinct ones).
The product of its digits is 8100, while the sum is 32.
The square root of 61395125 is about 7835.5041318348. The cubic root of 61395125 is about 394.4978396862.
The spelling of 61395125 in words is "sixty-one million, three hundred ninety-five thousand, one hundred twenty-five".
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