Base | Representation |
---|---|
bin | 1111011111111… |
… | …00100010011101 |
3 | 100001122011011020 |
4 | 13233330202131 |
5 | 231240243440 |
6 | 20522314353 |
7 | 3136026462 |
oct | 757744235 |
9 | 301564136 |
10 | 130009245 |
11 | 67428963 |
12 | 376589b9 |
13 | 20c1ca62 |
14 | 133a3669 |
15 | b6313d0 |
hex | 7bfc89d |
130009245 has 16 divisors (see below), whose sum is σ = 208686912. Its totient is φ = 69114240.
The previous prime is 130009241. The next prime is 130009249. The reversal of 130009245 is 542900031.
It is an interprime number because it is at equal distance from previous prime (130009241) and next prime (130009249).
It is not a de Polignac number, because 130009245 - 22 = 130009241 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130009241) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9151 + ... + 18540.
It is an arithmetic number, because the mean of its divisors is an integer number (13042932).
Almost surely, 2130009245 is an apocalyptic number.
130009245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
130009245 is a deficient number, since it is larger than the sum of its proper divisors (78677667).
130009245 is a wasteful number, since it uses less digits than its factorization.
130009245 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 28012.
The product of its (nonzero) digits is 1080, while the sum is 24.
The square root of 130009245 is about 11402.1596638532. The cubic root of 130009245 is about 506.5917101622.
Adding to 130009245 its reverse (542900031), we get a palindrome (672909276).
The spelling of 130009245 in words is "one hundred thirty million, nine thousand, two hundred forty-five".
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