Base | Representation |
---|---|
bin | 110001101011… |
… | …000011011001 |
3 | 220111120000010 |
4 | 301223003121 |
5 | 11313141101 |
6 | 1143032133 |
7 | 215452161 |
oct | 61530331 |
9 | 26446003 |
10 | 13021401 |
11 | 7394198 |
12 | 443b649 |
13 | 290bb93 |
14 | 1a2d5a1 |
15 | 12232d6 |
hex | c6b0d9 |
13021401 has 8 divisors (see below), whose sum is σ = 17439264. Its totient is φ = 8642240.
The previous prime is 13021399. The next prime is 13021429. The reversal of 13021401 is 10412031.
It is a happy number.
13021401 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 13021401 - 21 = 13021399 is a prime.
It is not an unprimeable number, because it can be changed into a prime (13021451) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8880 + ... + 10241.
It is an arithmetic number, because the mean of its divisors is an integer number (2179908).
Almost surely, 213021401 is an apocalyptic number.
It is an amenable number.
13021401 is a deficient number, since it is larger than the sum of its proper divisors (4417863).
13021401 is a wasteful number, since it uses less digits than its factorization.
13021401 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19351.
The product of its (nonzero) digits is 24, while the sum is 12.
The square root of 13021401 is about 3608.5178397785. The cubic root of 13021401 is about 235.2624260172.
Adding to 13021401 its reverse (10412031), we get a palindrome (23433432).
The spelling of 13021401 in words is "thirteen million, twenty-one thousand, four hundred one".
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