Base | Representation |
---|---|
bin | 1111100001100… |
… | …10100011011101 |
3 | 100002001101122121 |
4 | 13300302203131 |
5 | 231314333433 |
6 | 20531142541 |
7 | 3140640511 |
oct | 760624335 |
9 | 302041577 |
10 | 130230493 |
11 | 6756a108 |
12 | 37744a51 |
13 | 20c99683 |
14 | 13420141 |
15 | b676c2d |
hex | 7c328dd |
130230493 has 4 divisors (see below), whose sum is σ = 130368960. Its totient is φ = 130092028.
The previous prime is 130230479. The next prime is 130230497. The reversal of 130230493 is 394032031.
It is a happy number.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 394032031 = 59 ⋅6678509.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-130230493 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130230497) 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, 67813 + ... + 69706.
It is an arithmetic number, because the mean of its divisors is an integer number (32592240).
Almost surely, 2130230493 is an apocalyptic number.
It is an amenable number.
130230493 is a deficient number, since it is larger than the sum of its proper divisors (138467).
130230493 is an equidigital number, since it uses as much as digits as its factorization.
130230493 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 138466.
The product of its (nonzero) digits is 1944, while the sum is 25.
The square root of 130230493 is about 11411.8575613263. The cubic root of 130230493 is about 506.8789176415.
The spelling of 130230493 in words is "one hundred thirty million, two hundred thirty thousand, four hundred ninety-three".
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