Base | Representation |
---|---|
bin | 110001100010… |
… | …111101101110 |
3 | 220102212120001 |
4 | 301202331232 |
5 | 11311111040 |
6 | 1142214514 |
7 | 215253451 |
oct | 61427556 |
9 | 26385501 |
10 | 12988270 |
11 | 7371309 |
12 | 442443a |
13 | 28c9a89 |
14 | 1a21498 |
15 | 121859a |
hex | c62f6e |
12988270 has 16 divisors (see below), whose sum is σ = 23429808. Its totient is φ = 5184000.
The previous prime is 12988247. The next prime is 12988273. The reversal of 12988270 is 7288921.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12988273) 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, 4645 + ... + 6895.
It is an arithmetic number, because the mean of its divisors is an integer number (1464363).
Almost surely, 212988270 is an apocalyptic number.
12988270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12988270 is a deficient number, since it is larger than the sum of its proper divisors (10441538).
12988270 is a wasteful number, since it uses less digits than its factorization.
12988270 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2835.
The product of its (nonzero) digits is 16128, while the sum is 37.
The square root of 12988270 is about 3603.9242500363. The cubic root of 12988270 is about 235.0627265782.
The spelling of 12988270 in words is "twelve million, nine hundred eighty-eight thousand, two hundred seventy".
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