Base | Representation |
---|---|
bin | 1110101100111… |
… | …1111111011101 |
3 | 11022001010102200 |
4 | 3223033333131 |
5 | 111241404331 |
6 | 10041442113 |
7 | 1346115666 |
oct | 353177735 |
9 | 138033380 |
10 | 61669341 |
11 | 318a10a8 |
12 | 187a0339 |
13 | ca12a46 |
14 | 829436d |
15 | 56325e6 |
hex | 3acffdd |
61669341 has 24 divisors (see below), whose sum is σ = 92590680. Its totient is φ = 39505536.
The previous prime is 61669339. The next prime is 61669373. The reversal of 61669341 is 14396616.
61669341 is a `hidden beast` number, since 616 + 6 + 9 + 34 + 1 = 666.
It can be written as a sum of positive squares in 4 ways, for example, as 125316 + 61544025 = 354^2 + 7845^2 .
It is not a de Polignac number, because 61669341 - 21 = 61669339 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 61669296 and 61669305.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (61669301) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71871 + ... + 72723.
It is an arithmetic number, because the mean of its divisors is an integer number (3857945).
Almost surely, 261669341 is an apocalyptic number.
It is an amenable number.
61669341 is a deficient number, since it is larger than the sum of its proper divisors (30921339).
61669341 is a wasteful number, since it uses less digits than its factorization.
61669341 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1165 (or 1162 counting only the distinct ones).
The product of its digits is 23328, while the sum is 36.
The square root of 61669341 is about 7852.9829364389. The cubic root of 61669341 is about 395.0842975564.
The spelling of 61669341 in words is "sixty-one million, six hundred sixty-nine thousand, three hundred forty-one".
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