Base | Representation |
---|---|
bin | 111111111001000100… |
… | …001011100100110010 |
3 | 20120002001220012111112 |
4 | 333321010023210302 |
5 | 2110444400212320 |
6 | 51303231113322 |
7 | 4646023000544 |
oct | 777104134462 |
9 | 216061805445 |
10 | 68603132210 |
11 | 27104752688 |
12 | 11367072842 |
13 | 6613c24772 |
14 | 346b2bb694 |
15 | 1bb7b88ec5 |
hex | ff910b932 |
68603132210 has 16 divisors (see below), whose sum is σ = 123505263000. Its totient is φ = 27436891776.
The previous prime is 68603132209. The next prime is 68603132243. The reversal of 68603132210 is 1223130686.
It can be written as a sum of positive squares in 4 ways, for example, as 61096469329 + 7506662881 = 247177^2 + 86641^2 .
It is a Curzon number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478685 + ... + 605264.
Almost surely, 268603132210 is an apocalyptic number.
68603132210 is a deficient number, since it is larger than the sum of its proper divisors (54902130790).
68603132210 is a wasteful number, since it uses less digits than its factorization.
68603132210 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1090285.
The product of its (nonzero) digits is 10368, while the sum is 32.
Adding to 68603132210 its reverse (1223130686), we get a palindrome (69826262896).
The spelling of 68603132210 in words is "sixty-eight billion, six hundred three million, one hundred thirty-two thousand, two hundred ten".
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