Base | Representation |
---|---|
bin | 1001001111000111001100… |
… | …00100010001001101100101 |
3 | 2122220122212020121112100221 |
4 | 10213203212010101031211 |
5 | 10130231313101113440 |
6 | 111110255434004341 |
7 | 4164245156110465 |
oct | 447434604211545 |
9 | 78818766545327 |
10 | 20310465254245 |
11 | 6520690163791 |
12 | 23403798766b1 |
13 | b4436530aa7a |
14 | 503063231ba5 |
15 | 2534c61a5d4a |
hex | 1278e6111365 |
20310465254245 has 16 divisors (see below), whose sum is σ = 24377392917360. Its totient is φ = 16245149529600.
The previous prime is 20310465254227. The next prime is 20310465254257. The reversal of 20310465254245 is 54245256401302.
It can be written as a sum of positive squares in 8 ways, for example, as 5849306709156 + 14461158545089 = 2418534^2 + 3802783^2 .
It is not a de Polignac number, because 20310465254245 - 223 = 20310456865637 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1011014161 + ... + 1011034249.
It is an arithmetic number, because the mean of its divisors is an integer number (1523587057335).
Almost surely, 220310465254245 is an apocalyptic number.
It is an amenable number.
20310465254245 is a deficient number, since it is larger than the sum of its proper divisors (4066927663115).
20310465254245 is a wasteful number, since it uses less digits than its factorization.
20310465254245 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 50136.
The product of its (nonzero) digits is 1152000, while the sum is 43.
The spelling of 20310465254245 in words is "twenty trillion, three hundred ten billion, four hundred sixty-five million, two hundred fifty-four thousand, two hundred forty-five".
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