Base | Representation |
---|---|
bin | 110000101000… |
… | …111000101010 |
3 | 212222210020020 |
4 | 300220320222 |
5 | 11231003003 |
6 | 1133141310 |
7 | 213243054 |
oct | 60507052 |
9 | 25883206 |
10 | 12750378 |
11 | 7219603 |
12 | 432a836 |
13 | 2845704 |
14 | 199c8d4 |
15 | 11bcd53 |
hex | c28e2a |
12750378 has 16 divisors (see below), whose sum is σ = 25586496. Its totient is φ = 4235840.
The previous prime is 12750373. The next prime is 12750379. The reversal of 12750378 is 87305721.
It is not an unprimeable number, because it can be changed into a prime (12750371) 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, 1551 + ... + 5282.
It is an arithmetic number, because the mean of its divisors is an integer number (1599156).
Almost surely, 212750378 is an apocalyptic number.
12750378 is an abundant number, since it is smaller than the sum of its proper divisors (12836118).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12750378 is a wasteful number, since it uses less digits than its factorization.
12750378 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7149.
The product of its (nonzero) digits is 11760, while the sum is 33.
The square root of 12750378 is about 3570.7671444663. The cubic root of 12750378 is about 233.6187450750.
It can be divided in two parts, 127 and 50378, that added together give a palindrome (50505).
The spelling of 12750378 in words is "twelve million, seven hundred fifty thousand, three hundred seventy-eight".
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