Base | Representation |
---|---|
bin | 1111011000111… |
… | …01000111100011 |
3 | 22222220122211112 |
4 | 13230131013203 |
5 | 231022002430 |
6 | 20450533535 |
7 | 3125165453 |
oct | 754350743 |
9 | 288818745 |
10 | 129094115 |
11 | 66963357 |
12 | 372972ab |
13 | 2098c367 |
14 | 13205d63 |
15 | b500195 |
hex | 7b1d1e3 |
129094115 has 4 divisors (see below), whose sum is σ = 154912944. Its totient is φ = 103275288.
The previous prime is 129094079. The next prime is 129094153. The reversal of 129094115 is 511490921.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 511490921 = 89 ⋅5747089.
It is a cyclic number.
It is not a de Polignac number, because 129094115 - 28 = 129093859 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12909407 + ... + 12909416.
It is an arithmetic number, because the mean of its divisors is an integer number (38728236).
Almost surely, 2129094115 is an apocalyptic number.
129094115 is a deficient number, since it is larger than the sum of its proper divisors (25818829).
129094115 is an equidigital number, since it uses as much as digits as its factorization.
129094115 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25818828.
The product of its (nonzero) digits is 3240, while the sum is 32.
The square root of 129094115 is about 11361.9591180395. The cubic root of 129094115 is about 505.4002838829.
The spelling of 129094115 in words is "one hundred twenty-nine million, ninety-four thousand, one hundred fifteen".
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