Base | Representation |
---|---|
bin | 1111011011001… |
… | …00011000110101 |
3 | 100000110111021110 |
4 | 13231210120311 |
5 | 231110323122 |
6 | 20501105233 |
7 | 3130522524 |
oct | 755443065 |
9 | 300414243 |
10 | 129386037 |
11 | 67042710 |
12 | 373b8219 |
13 | 20a621b1 |
14 | 132804bb |
15 | b55b90c |
hex | 7b64635 |
129386037 has 16 divisors (see below), whose sum is σ = 192790080. Its totient is φ = 76502400.
The previous prime is 129386027. The next prime is 129386039. The reversal of 129386037 is 730683921.
It is not a de Polignac number, because 129386037 - 26 = 129385973 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 129385986 and 129386004.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (129386039) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46462 + ... + 49167.
It is an arithmetic number, because the mean of its divisors is an integer number (12049380).
Almost surely, 2129386037 is an apocalyptic number.
It is an amenable number.
129386037 is a deficient number, since it is larger than the sum of its proper divisors (63404043).
129386037 is a wasteful number, since it uses less digits than its factorization.
129386037 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 95684.
The product of its (nonzero) digits is 54432, while the sum is 39.
The square root of 129386037 is about 11374.7983278826. The cubic root of 129386037 is about 505.7809529056.
The spelling of 129386037 in words is "one hundred twenty-nine million, three hundred eighty-six thousand, thirty-seven".
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