Base | Representation |
---|---|
bin | 111000010001… |
… | …1011010010001 |
3 | 2001112000111001 |
4 | 1300203122101 |
5 | 30023131134 |
6 | 2532222001 |
7 | 505534621 |
oct | 160433221 |
9 | 61460431 |
10 | 29505169 |
11 | 15722741 |
12 | 9a6a901 |
13 | 61609a5 |
14 | 3cc0881 |
15 | 28cc414 |
hex | 1c23691 |
29505169 has 8 divisors (see below), whose sum is σ = 30618728. Its totient is φ = 28408320.
The previous prime is 29505139. The next prime is 29505187. The reversal of 29505169 is 96150592.
It can be written as a sum of positive squares in 4 ways, for example, as 17114769 + 12390400 = 4137^2 + 3520^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 29505169 - 27 = 29505041 is a prime.
It is a super-2 number, since 2×295051692 = 1741109995437122, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (37).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (29505139) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 522 + ... + 7699.
It is an arithmetic number, because the mean of its divisors is an integer number (3827341).
Almost surely, 229505169 is an apocalyptic number.
It is an amenable number.
29505169 is a deficient number, since it is larger than the sum of its proper divisors (1113559).
29505169 is an equidigital number, since it uses as much as digits as its factorization.
29505169 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8355.
The product of its (nonzero) digits is 24300, while the sum is 37.
The square root of 29505169 is about 5431.8660697775. The cubic root of 29505169 is about 309.0053761942.
The spelling of 29505169 in words is "twenty-nine million, five hundred five thousand, one hundred sixty-nine".
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