Base | Representation |
---|---|
bin | 11000011100011011… |
… | …10100000110101001 |
3 | 1020212121000000012110 |
4 | 30032031310012221 |
5 | 203334042413301 |
6 | 10010120032533 |
7 | 643132044435 |
oct | 141615640651 |
9 | 36777000173 |
10 | 13123404201 |
11 | 56249018a6 |
12 | 2663002749 |
13 | 1311b1b23b |
14 | 8c6ccd9c5 |
15 | 51c1cb0d6 |
hex | 30e3741a9 |
13123404201 has 16 divisors (see below), whose sum is σ = 18551182464. Its totient is φ = 8223615744.
The previous prime is 13123404197. The next prime is 13123404211. The reversal of 13123404201 is 10240432131.
It is not a de Polignac number, because 13123404201 - 22 = 13123404197 is a prime.
It is not an unprimeable number, because it can be changed into a prime (13123404211) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127021 + ... + 205866.
It is an arithmetic number, because the mean of its divisors is an integer number (1159448904).
Almost surely, 213123404201 is an apocalyptic number.
It is an amenable number.
13123404201 is a deficient number, since it is larger than the sum of its proper divisors (5427778263).
13123404201 is a wasteful number, since it uses less digits than its factorization.
13123404201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 333680.
The product of its (nonzero) digits is 576, while the sum is 21.
Adding to 13123404201 its reverse (10240432131), we get a palindrome (23363836332).
The spelling of 13123404201 in words is "thirteen billion, one hundred twenty-three million, four hundred four thousand, two hundred one".
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