Base | Representation |
---|---|
bin | 10110101101111… |
… | …100000011011101 |
3 | 222120011222110020 |
4 | 112231330003131 |
5 | 1240033004323 |
6 | 101453102353 |
7 | 12305434605 |
oct | 2655740335 |
9 | 876158406 |
10 | 381141213 |
11 | 186165042 |
12 | a77879b9 |
13 | 60c6a75b |
14 | 38895c05 |
15 | 236daae3 |
hex | 16b7c0dd |
381141213 has 8 divisors (see below), whose sum is σ = 508499808. Its totient is φ = 253938384.
The previous prime is 381141209. The next prime is 381141221. The reversal of 381141213 is 312141183.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 381141213 - 22 = 381141209 is a prime.
It is a super-2 number, since 2×3811412132 = 290537248494222738, which contains 22 as substring.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (381141223) 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, 33106 + ... + 43107.
It is an arithmetic number, because the mean of its divisors is an integer number (63562476).
Almost surely, 2381141213 is an apocalyptic number.
It is an amenable number.
381141213 is a deficient number, since it is larger than the sum of its proper divisors (127358595).
381141213 is a wasteful number, since it uses less digits than its factorization.
381141213 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 77883.
The product of its digits is 576, while the sum is 24.
The square root of 381141213 is about 19522.8382414033. The cubic root of 381141213 is about 725.0400060366.
Adding to 381141213 its reverse (312141183), we get a palindrome (693282396).
The spelling of 381141213 in words is "three hundred eighty-one million, one hundred forty-one thousand, two hundred thirteen".
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