Base | Representation |
---|---|
bin | 11001010111101110… |
… | …10000001101010101 |
3 | 1022011020221122212021 |
4 | 30223313100031111 |
5 | 210343411301420 |
6 | 10131325053141 |
7 | 661351642036 |
oct | 145367201525 |
9 | 38136848767 |
10 | 13620806485 |
11 | 585a654570 |
12 | 27816b71b1 |
13 | 1390ba3b10 |
14 | 932daaa8d |
15 | 54abce7aa |
hex | 32bdd0355 |
13620806485 has 32 divisors (see below), whose sum is σ = 19721503872. Its totient is φ = 8896884480.
The previous prime is 13620806483. The next prime is 13620806491. The reversal of 13620806485 is 58460802631.
It is not a de Polignac number, because 13620806485 - 21 = 13620806483 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13620806483) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 230979 + ... + 283888.
It is an arithmetic number, because the mean of its divisors is an integer number (616296996).
Almost surely, 213620806485 is an apocalyptic number.
It is an amenable number.
13620806485 is a deficient number, since it is larger than the sum of its proper divisors (6100697387).
13620806485 is a wasteful number, since it uses less digits than its factorization.
13620806485 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 514933.
The product of its (nonzero) digits is 276480, while the sum is 43.
The spelling of 13620806485 in words is "thirteen billion, six hundred twenty million, eight hundred six thousand, four hundred eighty-five".
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