Base | Representation |
---|---|
bin | 101111001110… |
… | …101101111110 |
3 | 212022000121120 |
4 | 233032231332 |
5 | 11132143204 |
6 | 1121211410 |
7 | 210144240 |
oct | 57165576 |
9 | 25260546 |
10 | 12381054 |
11 | 6a97084 |
12 | 4190b66 |
13 | 274658a |
14 | 1904090 |
15 | 11486d9 |
hex | bceb7e |
12381054 has 16 divisors (see below), whose sum is σ = 28299648. Its totient is φ = 3537432.
The previous prime is 12381053. The next prime is 12381067. The reversal of 12381054 is 45018321.
It is an alternating number because its digits alternate between odd and even.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12381053) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147352 + ... + 147435.
It is an arithmetic number, because the mean of its divisors is an integer number (1768728).
Almost surely, 212381054 is an apocalyptic number.
12381054 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
12381054 is an abundant number, since it is smaller than the sum of its proper divisors (15918594).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12381054 is a wasteful number, since it uses less digits than its factorization.
12381054 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 294799.
The product of its (nonzero) digits is 960, while the sum is 24.
The square root of 12381054 is about 3518.6721927454. The cubic root of 12381054 is about 231.3409630946.
Adding to 12381054 its reverse (45018321), we get a palindrome (57399375).
The spelling of 12381054 in words is "twelve million, three hundred eighty-one thousand, fifty-four".
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