Base | Representation |
---|---|
bin | 100110111101… |
… | …001100101111 |
3 | 201012211102112 |
4 | 212331030233 |
5 | 10103242033 |
6 | 1002514235 |
7 | 152542004 |
oct | 46751457 |
9 | 21184375 |
10 | 10212143 |
11 | 5845597 |
12 | 350597b |
13 | 21672b6 |
14 | 14db8ab |
15 | d6ac48 |
hex | 9bd32f |
10212143 has 4 divisors (see below), whose sum is σ = 10356048. Its totient is φ = 10068240.
The previous prime is 10212131. The next prime is 10212151. The reversal of 10212143 is 34121201.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34121201 = 47 ⋅725983.
It is a cyclic number.
It is not a de Polignac number, because 10212143 - 212 = 10208047 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10212173) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71846 + ... + 71987.
It is an arithmetic number, because the mean of its divisors is an integer number (2589012).
Almost surely, 210212143 is an apocalyptic number.
10212143 is a deficient number, since it is larger than the sum of its proper divisors (143905).
10212143 is an equidigital number, since it uses as much as digits as its factorization.
10212143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 143904.
The product of its (nonzero) digits is 48, while the sum is 14.
The square root of 10212143 is about 3195.6443794640. The cubic root of 10212143 is about 216.9563150469.
Adding to 10212143 its reverse (34121201), we get a palindrome (44333344).
The spelling of 10212143 in words is "ten million, two hundred twelve thousand, one hundred forty-three".
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