Base | Representation |
---|---|
bin | 110000110101… |
… | …011001010111 |
3 | 220002101112012 |
4 | 300311121113 |
5 | 11234122443 |
6 | 1134214435 |
7 | 213545342 |
oct | 60653127 |
9 | 26071465 |
10 | 12801623 |
11 | 725405a |
12 | 435441b |
13 | 2862b33 |
14 | 19b3459 |
15 | 11cd118 |
hex | c35657 |
12801623 has 8 divisors (see below), whose sum is σ = 13086192. Its totient is φ = 12519936.
The previous prime is 12801589. The next prime is 12801637. The reversal of 12801623 is 32610821.
12801623 is digitally balanced in base 3, because in such base 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 12801623 - 26 = 12801559 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 (12801923) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9911 + ... + 11127.
It is an arithmetic number, because the mean of its divisors is an integer number (1635774).
Almost surely, 212801623 is an apocalyptic number.
12801623 is a deficient number, since it is larger than the sum of its proper divisors (284569).
12801623 is a wasteful number, since it uses less digits than its factorization.
12801623 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1441.
The product of its (nonzero) digits is 576, while the sum is 23.
The square root of 12801623 is about 3577.9355779555. The cubic root of 12801623 is about 233.9313054742.
The spelling of 12801623 in words is "twelve million, eight hundred one thousand, six hundred twenty-three".
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