Base | Representation |
---|---|
bin | 1111011111010… |
… | …11001111101101 |
3 | 100001111112222211 |
4 | 13233223033231 |
5 | 231231012123 |
6 | 20521010421 |
7 | 3135313123 |
oct | 757531755 |
9 | 301445884 |
10 | 129938413 |
11 | 6738a720 |
12 | 37623a11 |
13 | 20bc6747 |
14 | 13385913 |
15 | b61a40d |
hex | 7beb3ed |
129938413 has 8 divisors (see below), whose sum is σ = 145582560. Its totient is φ = 114932880.
The previous prime is 129938411. The next prime is 129938491. The reversal of 129938413 is 314839921.
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 129938413 - 21 = 129938411 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 (129938411) 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, 159223 + ... + 160036.
It is an arithmetic number, because the mean of its divisors is an integer number (18197820).
Almost surely, 2129938413 is an apocalyptic number.
It is an amenable number.
129938413 is a deficient number, since it is larger than the sum of its proper divisors (15644147).
129938413 is a wasteful number, since it uses less digits than its factorization.
129938413 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 319307.
The product of its digits is 46656, while the sum is 40.
The square root of 129938413 is about 11399.0531624342. The cubic root of 129938413 is about 506.4996925456.
The spelling of 129938413 in words is "one hundred twenty-nine million, nine hundred thirty-eight thousand, four hundred thirteen".
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