Base | Representation |
---|---|
bin | 1110010001111000111… |
… | …0000001111111010011 |
3 | 212110012210002212001211 |
4 | 3210132032001333103 |
5 | 13004403423134030 |
6 | 304410513440551 |
7 | 23503155463255 |
oct | 3443616017723 |
9 | 773183085054 |
10 | 245320130515 |
11 | 95048900019 |
12 | 3b665270157 |
13 | 1a197658a55 |
14 | bc33083cd5 |
15 | 65ac04b12a |
hex | 391e381fd3 |
245320130515 has 24 divisors (see below), whose sum is σ = 301038660000. Its totient is φ = 191915862528.
The previous prime is 245320130359. The next prime is 245320130527. The reversal of 245320130515 is 515031023542.
It is not a de Polignac number, because 245320130515 - 225 = 245286576083 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13786314 + ... + 13804096.
It is an arithmetic number, because the mean of its divisors is an integer number (12543277500).
Almost surely, 2245320130515 is an apocalyptic number.
245320130515 is a deficient number, since it is larger than the sum of its proper divisors (55718529485).
245320130515 is a wasteful number, since it uses less digits than its factorization.
245320130515 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19131 (or 19084 counting only the distinct ones).
The product of its (nonzero) digits is 18000, while the sum is 31.
The spelling of 245320130515 in words is "two hundred forty-five billion, three hundred twenty million, one hundred thirty thousand, five hundred fifteen".
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