Base | Representation |
---|---|
bin | 11000111111110101… |
… | …10100100101110111 |
3 | 1021122021212201220102 |
4 | 30133322310211313 |
5 | 204441111242401 |
6 | 10055410024315 |
7 | 653366435240 |
oct | 143772644567 |
9 | 37567781812 |
10 | 13420415351 |
11 | 5767524762 |
12 | 272657809b |
13 | 135b510795 |
14 | 914525cc7 |
15 | 5382e956b |
hex | 31feb4977 |
13420415351 has 4 divisors (see below), whose sum is σ = 15337617552. Its totient is φ = 11503213152.
The previous prime is 13420415341. The next prime is 13420415363. The reversal of 13420415351 is 15351402431.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15351402431 = 19 ⋅807968549.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-13420415351 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13420415341) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 958601090 + ... + 958601103.
It is an arithmetic number, because the mean of its divisors is an integer number (3834404388).
Almost surely, 213420415351 is an apocalyptic number.
13420415351 is a deficient number, since it is larger than the sum of its proper divisors (1917202201).
13420415351 is an equidigital number, since it uses as much as digits as its factorization.
13420415351 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1917202200.
The product of its (nonzero) digits is 7200, while the sum is 29.
Adding to 13420415351 its reverse (15351402431), we get a palindrome (28771817782).
The spelling of 13420415351 in words is "thirteen billion, four hundred twenty million, four hundred fifteen thousand, three hundred fifty-one".
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