Base | Representation |
---|---|
bin | 110111101101… |
… | …0101010010101 |
3 | 2000221212201202 |
4 | 1233122222111 |
5 | 24434112224 |
6 | 2522002245 |
7 | 503154104 |
oct | 157325225 |
9 | 60855652 |
10 | 29207189 |
11 | 15539880 |
12 | 9946385 |
13 | 608817b |
14 | 3c4403b |
15 | 286deae |
hex | 1bdaa95 |
29207189 has 4 divisors (see below), whose sum is σ = 31862400. Its totient is φ = 26551980.
The previous prime is 29207153. The next prime is 29207201. The reversal of 29207189 is 98170292.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 29207189 - 216 = 29141653 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (29207489) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1327589 + ... + 1327610.
It is an arithmetic number, because the mean of its divisors is an integer number (7965600).
Almost surely, 229207189 is an apocalyptic number.
It is an amenable number.
29207189 is a deficient number, since it is larger than the sum of its proper divisors (2655211).
29207189 is a wasteful number, since it uses less digits than its factorization.
29207189 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2655210.
The product of its (nonzero) digits is 18144, while the sum is 38.
The square root of 29207189 is about 5404.3675855737. The cubic root of 29207189 is about 307.9616139545.
The spelling of 29207189 in words is "twenty-nine million, two hundred seven thousand, one hundred eighty-nine".
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