Base | Representation |
---|---|
bin | 1111011101100… |
… | …10010101010101 |
3 | 100001001201020001 |
4 | 13232302111111 |
5 | 231201032201 |
6 | 20512011301 |
7 | 3133322365 |
oct | 756622525 |
9 | 301051201 |
10 | 129705301 |
11 | 67240570 |
12 | 37530b31 |
13 | 20b445cb |
14 | 133249a5 |
15 | b5c1301 |
hex | 7bb2555 |
129705301 has 8 divisors (see below), whose sum is σ = 141609600. Its totient is φ = 117819840.
The previous prime is 129705299. The next prime is 129705319. The reversal of 129705301 is 103507921.
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 129705301 - 21 = 129705299 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 129705301.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (129705341) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12420 + ... + 20338.
It is an arithmetic number, because the mean of its divisors is an integer number (17701200).
Almost surely, 2129705301 is an apocalyptic number.
129705301 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
129705301 is a deficient number, since it is larger than the sum of its proper divisors (11904299).
129705301 is a wasteful number, since it uses less digits than its factorization.
129705301 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9419.
The product of its (nonzero) digits is 1890, while the sum is 28.
The square root of 129705301 is about 11388.8235125495. The cubic root of 129705301 is about 506.1966211870.
The spelling of 129705301 in words is "one hundred twenty-nine million, seven hundred five thousand, three hundred one".
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