Base | Representation |
---|---|
bin | 101111010000… |
… | …010010100111 |
3 | 212022100110010 |
4 | 233100102213 |
5 | 11132344440 |
6 | 1121301303 |
7 | 210202101 |
oct | 57202247 |
9 | 25270403 |
10 | 12387495 |
11 | 6aa09aa |
12 | 4194833 |
13 | 27494a3 |
14 | 1906571 |
15 | 114a580 |
hex | bd04a7 |
12387495 has 16 divisors (see below), whose sum is σ = 20504160. Its totient is φ = 6378624.
The previous prime is 12387481. The next prime is 12387517. The reversal of 12387495 is 59478321.
12387495 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 not a de Polignac number, because 12387495 - 28 = 12387239 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13804 + ... + 14673.
It is an arithmetic number, because the mean of its divisors is an integer number (1281510).
Almost surely, 212387495 is an apocalyptic number.
12387495 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
12387495 is a deficient number, since it is larger than the sum of its proper divisors (8116665).
12387495 is a wasteful number, since it uses less digits than its factorization.
12387495 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 28514.
The product of its digits is 60480, while the sum is 39.
The square root of 12387495 is about 3519.5873337651. The cubic root of 12387495 is about 231.3810730030.
The spelling of 12387495 in words is "twelve million, three hundred eighty-seven thousand, four hundred ninety-five".
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