Base | Representation |
---|---|
bin | 110011000100… |
… | …011011011101 |
3 | 221012011011210 |
4 | 303010123131 |
5 | 11411344420 |
6 | 1154535033 |
7 | 221535366 |
oct | 63043335 |
9 | 27164153 |
10 | 13387485 |
11 | 7614241 |
12 | 4597479 |
13 | 2a096b7 |
14 | 1ac6b6d |
15 | 12969e0 |
hex | cc46dd |
13387485 has 16 divisors (see below), whose sum is σ = 21680064. Its totient is φ = 7053312.
The previous prime is 13387459. The next prime is 13387499. The reversal of 13387485 is 58478331.
It is not a de Polignac number, because 13387485 - 25 = 13387453 is a prime.
It is a congruent number.
It is an unprimeable number.
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 15 ways as a sum of consecutive naturals, for example, 4132 + ... + 6621.
It is an arithmetic number, because the mean of its divisors is an integer number (1355004).
Almost surely, 213387485 is an apocalyptic number.
13387485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
13387485 is a deficient number, since it is larger than the sum of its proper divisors (8292579).
13387485 is a wasteful number, since it uses less digits than its factorization.
13387485 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10844.
The product of its digits is 80640, while the sum is 39.
The square root of 13387485 is about 3658.8912254944. The cubic root of 13387485 is about 237.4468061847.
It can be divided in two parts, 13 and 387485, that multiplied together give a palindrome (5037305).
The spelling of 13387485 in words is "thirteen million, three hundred eighty-seven thousand, four hundred eighty-five".
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