Base | Representation |
---|---|
bin | 110010100111… |
… | …111001100111 |
3 | 220222012212212 |
4 | 302213321213 |
5 | 11344130011 |
6 | 1152234035 |
7 | 220540613 |
oct | 62477147 |
9 | 26865785 |
10 | 13270631 |
11 | 7544470 |
12 | 453b91b |
13 | 299845a |
14 | 1a96343 |
15 | 127208b |
hex | ca7e67 |
13270631 has 8 divisors (see below), whose sum is σ = 14506128. Its totient is φ = 12040000.
The previous prime is 13270627. The next prime is 13270637. The reversal of 13270631 is 13607231.
It is a happy number.
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 13270631 - 22 = 13270627 is a prime.
It is a super-2 number, since 2×132706312 = 352219294276322, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 13270597 and 13270606.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13270637) 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, 6851 + ... + 8571.
It is an arithmetic number, because the mean of its divisors is an integer number (1813266).
Almost surely, 213270631 is an apocalyptic number.
13270631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
13270631 is a deficient number, since it is larger than the sum of its proper divisors (1235497).
13270631 is a wasteful number, since it uses less digits than its factorization.
13270631 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2433.
The product of its (nonzero) digits is 756, while the sum is 23.
The square root of 13270631 is about 3642.8877281629. The cubic root of 13270631 is about 236.7539269137.
Adding to 13270631 its reverse (13607231), we get a palindrome (26877862).
The spelling of 13270631 in words is "thirteen million, two hundred seventy thousand, six hundred thirty-one".
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