Base | Representation |
---|---|
bin | 110010001010… |
… | …101001101001 |
3 | 220202010112121 |
4 | 302022221221 |
5 | 11331311300 |
6 | 1145511241 |
7 | 216531412 |
oct | 62125151 |
9 | 26663477 |
10 | 13150825 |
11 | 7472456 |
12 | 44a2521 |
13 | 2955a6c |
14 | 1a64809 |
15 | 124b81a |
hex | c8aa69 |
13150825 has 12 divisors (see below), whose sum is σ = 17016768. Its totient is φ = 10062800.
The previous prime is 13150811. The next prime is 13150829. The reversal of 13150825 is 52805131.
It is a happy number.
It is a de Polignac number, because none of the positive numbers 2k-13150825 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (25).
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 13150825.
It is not an unprimeable number, because it can be changed into a prime (13150829) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10861 + ... + 12010.
It is an arithmetic number, because the mean of its divisors is an integer number (1418064).
Almost surely, 213150825 is an apocalyptic number.
It is an amenable number.
13150825 is a deficient number, since it is larger than the sum of its proper divisors (3865943).
13150825 is a wasteful number, since it uses less digits than its factorization.
13150825 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22904 (or 22899 counting only the distinct ones).
The product of its (nonzero) digits is 1200, while the sum is 25.
The square root of 13150825 is about 3626.4066236427. The cubic root of 13150825 is about 236.0393080652.
Adding to 13150825 its reverse (52805131), we get a palindrome (65955956).
The spelling of 13150825 in words is "thirteen million, one hundred fifty thousand, eight hundred twenty-five".
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