Base | Representation |
---|---|
bin | 1111100000110… |
… | …00010101000110 |
3 | 100001211221022021 |
4 | 13300120111012 |
5 | 231302414303 |
6 | 20524553354 |
7 | 3140012401 |
oct | 760302506 |
9 | 301757267 |
10 | 130123078 |
11 | 674a6438 |
12 | 376b285a |
13 | 20c5c807 |
14 | 133d2d38 |
15 | b654ebd |
hex | 7c18546 |
130123078 has 8 divisors (see below), whose sum is σ = 195247800. Its totient is φ = 65040480.
The previous prime is 130123069. The next prime is 130123079. The reversal of 130123078 is 870321031.
130123078 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130123079) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1128 + ... + 16171.
It is an arithmetic number, because the mean of its divisors is an integer number (24405975).
Almost surely, 2130123078 is an apocalyptic number.
130123078 is a deficient number, since it is larger than the sum of its proper divisors (65124722).
130123078 is a wasteful number, since it uses less digits than its factorization.
130123078 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21062.
The product of its (nonzero) digits is 1008, while the sum is 25.
The square root of 130123078 is about 11407.1503014557. The cubic root of 130123078 is about 506.7395202449.
The spelling of 130123078 in words is "one hundred thirty million, one hundred twenty-three thousand, seventy-eight".
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