Base | Representation |
---|---|
bin | 1100100010001… |
… | …01011110110111 |
3 | 21022211202222112 |
4 | 12101011132313 |
5 | 203404022244 |
6 | 14233321235 |
7 | 2414460011 |
oct | 621053667 |
9 | 238752875 |
10 | 105142199 |
11 | 54393988 |
12 | 2b26621b |
13 | 18a24226 |
14 | dd6d1b1 |
15 | 936d39e |
hex | 64457b7 |
105142199 has 2 divisors, whose sum is σ = 105142200. Its totient is φ = 105142198.
The previous prime is 105142187. The next prime is 105142201. The reversal of 105142199 is 991241501.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 105142199 - 220 = 104093623 is a prime.
It is a super-2 number, since 2×1051421992 = 22109764021111202, which contains 22 as substring.
Together with 105142201, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (105142129) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52571099 + 52571100.
It is an arithmetic number, because the mean of its divisors is an integer number (52571100).
Almost surely, 2105142199 is an apocalyptic number.
105142199 is a deficient number, since it is larger than the sum of its proper divisors (1).
105142199 is an equidigital number, since it uses as much as digits as its factorization.
105142199 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 3240, while the sum is 32.
The square root of 105142199 is about 10253.8870190772. The cubic root of 105142199 is about 471.9822706522.
The spelling of 105142199 in words is "one hundred five million, one hundred forty-two thousand, one hundred ninety-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •