Base | Representation |
---|---|
bin | 10100000100101011100… |
… | …01010010110011011010 |
3 | 2102221020220022221122220 |
4 | 22002111301102303122 |
5 | 42300010104311433 |
6 | 1244503001124510 |
7 | 100554410655132 |
oct | 12022561226332 |
9 | 2387226287586 |
10 | 689707494618 |
11 | 246559999aaa |
12 | b1805789736 |
13 | 50067ca707c |
14 | 2554c39dac2 |
15 | 12e1a6bb2b3 |
hex | a095c52cda |
689707494618 has 8 divisors (see below), whose sum is σ = 1379414989248. Its totient is φ = 229902498204.
The previous prime is 689707494587. The next prime is 689707494643. The reversal of 689707494618 is 816494707986.
It is a sphenic number, since it is the product of 3 distinct primes.
689707494618 is an admirable number.
It is a Curzon number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57475624546 + ... + 57475624557.
It is an arithmetic number, because the mean of its divisors is an integer number (172426873656).
Almost surely, 2689707494618 is an apocalyptic number.
689707494618 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
689707494618 is a wasteful number, since it uses less digits than its factorization.
689707494618 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 114951249108.
The product of its (nonzero) digits is 146313216, while the sum is 69.
The spelling of 689707494618 in words is "six hundred eighty-nine billion, seven hundred seven million, four hundred ninety-four thousand, six hundred eighteen".
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