Base | Representation |
---|---|
bin | 1111100001100… |
… | …10011110000001 |
3 | 100002001101011201 |
4 | 13300302132001 |
5 | 231314331040 |
6 | 20531141201 |
7 | 3140636503 |
oct | 760623601 |
9 | 302041151 |
10 | 130230145 |
11 | 67569921 |
12 | 37744801 |
13 | 20c99476 |
14 | 1341dd73 |
15 | b676a9a |
hex | 7c32781 |
130230145 has 16 divisors (see below), whose sum is σ = 161291088. Its totient is φ = 100879360.
The previous prime is 130230119. The next prime is 130230151. The reversal of 130230145 is 541032031.
It can be written as a sum of positive squares in 8 ways, for example, as 23541904 + 106688241 = 4852^2 + 10329^2 .
It is not a de Polignac number, because 130230145 - 27 = 130230017 is a prime.
It is a Duffinian number.
It is an unprimeable number.
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 15 ways as a sum of consecutive naturals, for example, 25767 + ... + 30403.
It is an arithmetic number, because the mean of its divisors is an integer number (10080693).
Almost surely, 2130230145 is an apocalyptic number.
It is an amenable number.
130230145 is a deficient number, since it is larger than the sum of its proper divisors (31060943).
130230145 is a wasteful number, since it uses less digits than its factorization.
130230145 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4820.
The product of its (nonzero) digits is 360, while the sum is 19.
The square root of 130230145 is about 11411.8423140175. The cubic root of 130230145 is about 506.8784661496.
Adding to 130230145 its reverse (541032031), we get a palindrome (671262176).
The spelling of 130230145 in words is "one hundred thirty million, two hundred thirty thousand, one hundred forty-five".
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