Base | Representation |
---|---|
bin | 11000101001101000… |
… | …01100110111110101 |
3 | 1021011022100111000120 |
4 | 30110310030313311 |
5 | 204100414133141 |
6 | 10025113202153 |
7 | 645645152421 |
oct | 142464146765 |
9 | 37138314016 |
10 | 13234130421 |
11 | 568135a076 |
12 | 2694100359 |
13 | 132ba49005 |
14 | 8d78b3b81 |
15 | 526c9dc66 |
hex | 314d0cdf5 |
13234130421 has 16 divisors (see below), whose sum is σ = 18040986624. Its totient is φ = 8625431664.
The previous prime is 13234130411. The next prime is 13234130449. The reversal of 13234130421 is 12403143231.
It is a happy number.
It is not a de Polignac number, because 13234130421 - 211 = 13234128373 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 13234130391 and 13234130400.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13234130411) 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, 76146 + ... + 179628.
It is an arithmetic number, because the mean of its divisors is an integer number (1127561664).
Almost surely, 213234130421 is an apocalyptic number.
It is an amenable number.
13234130421 is a deficient number, since it is larger than the sum of its proper divisors (4806856203).
13234130421 is a wasteful number, since it uses less digits than its factorization.
13234130421 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 104440.
The product of its (nonzero) digits is 1728, while the sum is 24.
Adding to 13234130421 its reverse (12403143231), we get a palindrome (25637273652).
The spelling of 13234130421 in words is "thirteen billion, two hundred thirty-four million, one hundred thirty thousand, four hundred twenty-one".
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