Base | Representation |
---|---|
bin | 11000100111111101… |
… | …11000101100001101 |
3 | 1021010100001102010222 |
4 | 30103332320230031 |
5 | 204033324413000 |
6 | 10023453441125 |
7 | 645415312253 |
oct | 142376705415 |
9 | 37110042128 |
10 | 13220154125 |
11 | 5674483512 |
12 | 268b4a01a5 |
13 | 1328b94609 |
14 | 8d5ab65d3 |
15 | 52593ca85 |
hex | 313fb8b0d |
13220154125 has 32 divisors (see below), whose sum is σ = 17841088512. Its totient is φ = 9742137600.
The previous prime is 13220154097. The next prime is 13220154137. The reversal of 13220154125 is 52145102231.
It is a de Polignac number, because none of the positive numbers 2k-13220154125 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 13220154094 and 13220154103.
It is a congruent 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 31 ways as a sum of consecutive naturals, for example, 33692 + ... + 166058.
It is an arithmetic number, because the mean of its divisors is an integer number (557534016).
Almost surely, 213220154125 is an apocalyptic number.
It is an amenable number.
13220154125 is a deficient number, since it is larger than the sum of its proper divisors (4620934387).
13220154125 is a wasteful number, since it uses less digits than its factorization.
13220154125 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 132446 (or 132436 counting only the distinct ones).
The product of its (nonzero) digits is 2400, while the sum is 26.
Adding to 13220154125 its reverse (52145102231), we get a palindrome (65365256356).
The spelling of 13220154125 in words is "thirteen billion, two hundred twenty million, one hundred fifty-four thousand, one hundred twenty-five".
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