Base | Representation |
---|---|
bin | 1111001001010001… |
… | …10010100000111010 |
3 | 202222122122202012221 |
4 | 13210220302200322 |
5 | 113123000141320 |
6 | 3422452354254 |
7 | 405330133246 |
oct | 74450624072 |
9 | 22878582187 |
10 | 8130865210 |
11 | 34a2730416 |
12 | 16ab01598a |
13 | 9c76a2660 |
14 | 571c11426 |
15 | 328c4a3aa |
hex | 1e4a3283a |
8130865210 has 16 divisors (see below), whose sum is σ = 15761369736. Its totient is φ = 3002165568.
The previous prime is 8130865201. The next prime is 8130865219. The reversal of 8130865210 is 125680318.
It is an interprime number because it is at equal distance from previous prime (8130865201) and next prime (8130865219).
It can be written as a sum of positive squares in 4 ways, for example, as 5638958649 + 2491906561 = 75093^2 + 49919^2 .
It is a super-2 number, since 2×81308652102 (a number of 21 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (8130865219) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31272429 + ... + 31272688.
Almost surely, 28130865210 is an apocalyptic number.
8130865210 is a deficient number, since it is larger than the sum of its proper divisors (7630504526).
8130865210 is a wasteful number, since it uses less digits than its factorization.
8130865210 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 62545137.
The product of its (nonzero) digits is 11520, while the sum is 34.
The square root of 8130865210 is about 90171.3103486913. The cubic root of 8130865210 is about 2010.8465044988.
The spelling of 8130865210 in words is "eight billion, one hundred thirty million, eight hundred sixty-five thousand, two hundred ten".
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