Base | Representation |
---|---|
bin | 11110100101110… |
… | …000101010011010 |
3 | 1022202201000210210 |
4 | 132211300222122 |
5 | 2022340341010 |
6 | 122531551550 |
7 | 15501154011 |
oct | 3645605232 |
9 | 1282630723 |
10 | 513215130 |
11 | 24377313a |
12 | 123a5b5b6 |
13 | 824311bc |
14 | 4c235a78 |
15 | 300c8b20 |
hex | 1e970a9a |
513215130 has 16 divisors (see below), whose sum is σ = 1231716384. Its totient is φ = 136857360.
The previous prime is 513215107. The next prime is 513215161. The reversal of 513215130 is 31512315.
It is a junction number, because it is equal to n+sod(n) for n = 513215097 and 513215106.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8553556 + ... + 8553615.
It is an arithmetic number, because the mean of its divisors is an integer number (76982274).
Almost surely, 2513215130 is an apocalyptic number.
513215130 is an abundant number, since it is smaller than the sum of its proper divisors (718501254).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
513215130 is a wasteful number, since it uses less digits than its factorization.
513215130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17107181.
The product of its (nonzero) digits is 450, while the sum is 21.
The square root of 513215130 is about 22654.2519187900. The cubic root of 513215130 is about 800.6323801957.
Adding to 513215130 its reverse (31512315), we get a palindrome (544727445).
The spelling of 513215130 in words is "five hundred thirteen million, two hundred fifteen thousand, one hundred thirty".
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