Base | Representation |
---|---|
bin | 11000011100011000… |
… | …11011111011011101 |
3 | 1020212120022122210000 |
4 | 30032030123323131 |
5 | 203333444334122 |
6 | 10010104204513 |
7 | 643126011456 |
oct | 141614337335 |
9 | 36776278700 |
10 | 13123043037 |
11 | 5624685515 |
12 | 2662a69739 |
13 | 1311a22a30 |
14 | 8c6c3812d |
15 | 51c1590ac |
hex | 30e31bedd |
13123043037 has 40 divisors (see below), whose sum is σ = 21123637920. Its totient is φ = 8071086240.
The previous prime is 13123043029. The next prime is 13123043057. The reversal of 13123043037 is 73034032131.
It is not a de Polignac number, because 13123043037 - 23 = 13123043029 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a self number, because there is not a number n which added to its sum of digits gives 13123043037.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13123043057) by changing a digit.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3168514 + ... + 3172652.
It is an arithmetic number, because the mean of its divisors is an integer number (528090948).
Almost surely, 213123043037 is an apocalyptic number.
It is an amenable number.
13123043037 is a deficient number, since it is larger than the sum of its proper divisors (8000594883).
13123043037 is a wasteful number, since it uses less digits than its factorization.
13123043037 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7175 (or 7166 counting only the distinct ones).
The product of its (nonzero) digits is 4536, while the sum is 27.
Adding to 13123043037 its reverse (73034032131), we get a palindrome (86157075168).
The spelling of 13123043037 in words is "thirteen billion, one hundred twenty-three million, forty-three thousand, thirty-seven".
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