Base | Representation |
---|---|
bin | 110111011101… |
… | …1111100010101 |
3 | 2000201111010121 |
4 | 1232323330111 |
5 | 24421100430 |
6 | 2515151541 |
7 | 502121215 |
oct | 156737425 |
9 | 60644117 |
10 | 29081365 |
11 | 15463295 |
12 | 98a55b1 |
13 | 6042b11 |
14 | 3c10245 |
15 | 2846a7a |
hex | 1bbbf15 |
29081365 has 8 divisors (see below), whose sum is σ = 35556408. Its totient is φ = 22825920.
The previous prime is 29081359. The next prime is 29081383. The reversal of 29081365 is 56318092.
It can be written as a sum of positive squares in 4 ways, for example, as 13256881 + 15824484 = 3641^2 + 3978^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 29081365 - 23 = 29081357 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 29081365.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54606 + ... + 55135.
It is an arithmetic number, because the mean of its divisors is an integer number (4444551).
Almost surely, 229081365 is an apocalyptic number.
It is an amenable number.
29081365 is a deficient number, since it is larger than the sum of its proper divisors (6475043).
29081365 is a wasteful number, since it uses less digits than its factorization.
29081365 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 109799.
The product of its (nonzero) digits is 12960, while the sum is 34.
The square root of 29081365 is about 5392.7140662193. The cubic root of 29081365 is about 307.5187465161.
The spelling of 29081365 in words is "twenty-nine million, eighty-one thousand, three hundred sixty-five".
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