Base | Representation |
---|---|
bin | 1111011001001… |
… | …00101111111101 |
3 | 22222222020201020 |
4 | 13230210233331 |
5 | 231024002443 |
6 | 20451334353 |
7 | 3125355546 |
oct | 754445775 |
9 | 288866636 |
10 | 129125373 |
11 | 66984893 |
12 | 372b13b9 |
13 | 209a0660 |
14 | 132134cd |
15 | b509583 |
hex | 7b24bfd |
129125373 has 16 divisors (see below), whose sum is σ = 186130560. Its totient is φ = 79153344.
The previous prime is 129125351. The next prime is 129125407. The reversal of 129125373 is 373521921.
It is not a de Polignac number, because 129125373 - 210 = 129124349 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (129125573) 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, 3963 + ... + 16551.
It is an arithmetic number, because the mean of its divisors is an integer number (11633160).
Almost surely, 2129125373 is an apocalyptic number.
129125373 is a gapful number since it is divisible by the number (13) formed by its first and last digit.
It is an amenable number.
129125373 is a deficient number, since it is larger than the sum of its proper divisors (57005187).
129125373 is a wasteful number, since it uses less digits than its factorization.
129125373 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12868.
The product of its digits is 11340, while the sum is 33.
The square root of 129125373 is about 11363.3345898112. The cubic root of 129125373 is about 505.4410720246.
The spelling of 129125373 in words is "one hundred twenty-nine million, one hundred twenty-five thousand, three hundred seventy-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.064 sec. • engine limits •