Base | Representation |
---|---|
bin | 1110101000000… |
… | …1101010000001 |
3 | 11021102211021222 |
4 | 3222001222001 |
5 | 111201122411 |
6 | 10030524425 |
7 | 1343311355 |
oct | 352015201 |
9 | 137384258 |
10 | 61348481 |
11 | 316a2027 |
12 | 18666715 |
13 | c92c99c |
14 | 820d465 |
15 | 55bc4db |
hex | 3a81a81 |
61348481 has 2 divisors, whose sum is σ = 61348482. Its totient is φ = 61348480.
The previous prime is 61348451. The next prime is 61348517. The reversal of 61348481 is 18484316.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 49210225 + 12138256 = 7015^2 + 3484^2 .
It is a cyclic number.
It is not a de Polignac number, because 61348481 - 210 = 61347457 is a prime.
It is a super-2 number, since 2×613484812 = 7527272242014722, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (61348451) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30674240 + 30674241.
It is an arithmetic number, because the mean of its divisors is an integer number (30674241).
Almost surely, 261348481 is an apocalyptic number.
It is an amenable number.
61348481 is a deficient number, since it is larger than the sum of its proper divisors (1).
61348481 is an equidigital number, since it uses as much as digits as its factorization.
61348481 is an evil number, because the sum of its binary digits is even.
The product of its digits is 18432, while the sum is 35.
The square root of 61348481 is about 7832.5271145397. The cubic root of 61348481 is about 394.3979098240.
It can be divided in two parts, 613 and 48481, that added together give a palindrome (49094).
The spelling of 61348481 in words is "sixty-one million, three hundred forty-eight thousand, four hundred eighty-one".
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