Base | Representation |
---|---|
bin | 1111100000111… |
… | …01100000100101 |
3 | 100001220000102000 |
4 | 13300131200211 |
5 | 231304104133 |
6 | 20525235513 |
7 | 3140131266 |
oct | 760354045 |
9 | 301800360 |
10 | 130144293 |
11 | 67510374 |
12 | 37702b99 |
13 | 20c69376 |
14 | 133da96d |
15 | b65b413 |
hex | 7c1d825 |
130144293 has 32 divisors (see below), whose sum is σ = 202368000. Its totient is φ = 82555200.
The previous prime is 130144271. The next prime is 130144303. The reversal of 130144293 is 392441031.
130144293 is a `hidden beast` number, since 130 + 1 + 442 + 93 = 666.
It is not a de Polignac number, because 130144293 - 213 = 130136101 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130144213) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49783 + ... + 52331.
It is an arithmetic number, because the mean of its divisors is an integer number (6324000).
Almost surely, 2130144293 is an apocalyptic number.
It is an amenable number.
130144293 is a deficient number, since it is larger than the sum of its proper divisors (72223707).
130144293 is a wasteful number, since it uses less digits than its factorization.
130144293 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2650 (or 2644 counting only the distinct ones).
The product of its (nonzero) digits is 2592, while the sum is 27.
The square root of 130144293 is about 11408.0801627618. The cubic root of 130144293 is about 506.7670580060.
The spelling of 130144293 in words is "one hundred thirty million, one hundred forty-four thousand, two hundred ninety-three".
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