Base | Representation |
---|---|
bin | 100100101101010101… |
… | …1101101001011101011 |
3 | 21112110212002110211221 |
4 | 1021122223231023223 |
5 | 2242421142134102 |
6 | 100114150002511 |
7 | 5460333616543 |
oct | 1113253551353 |
9 | 245425073757 |
10 | 78830818027 |
11 | 30482a3a395 |
12 | 13340346437 |
13 | 7583b40a70 |
14 | 3b5b78c323 |
15 | 20b5a1e637 |
hex | 125aaed2eb |
78830818027 has 16 divisors (see below), whose sum is σ = 85148612640. Its totient is φ = 72549614592.
The previous prime is 78830818007. The next prime is 78830818051. The reversal of 78830818027 is 72081803887.
It is a happy number.
It is not a de Polignac number, because 78830818027 - 211 = 78830815979 is a prime.
It is not an unprimeable number, because it can be changed into a prime (78830818007) 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, 6600153 + ... + 6612085.
It is an arithmetic number, because the mean of its divisors is an integer number (5321788290).
Almost surely, 278830818027 is an apocalyptic number.
78830818027 is a deficient number, since it is larger than the sum of its proper divisors (6317794613).
78830818027 is a wasteful number, since it uses less digits than its factorization.
78830818027 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13422.
The product of its (nonzero) digits is 1204224, while the sum is 52.
The spelling of 78830818027 in words is "seventy-eight billion, eight hundred thirty million, eight hundred eighteen thousand, twenty-seven".
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