Base | Representation |
---|---|
bin | 111101011101011… |
… | …111101101001111 |
3 | 2122212021110012201 |
4 | 331131133231033 |
5 | 4102433022343 |
6 | 250152542331 |
7 | 34360364356 |
oct | 7535375517 |
9 | 2585243181 |
10 | 1031142223 |
11 | 48a064461 |
12 | 2493b19a7 |
13 | 135822037 |
14 | 9ad3699d |
15 | 607d394d |
hex | 3d75fb4f |
1031142223 has 2 divisors, whose sum is σ = 1031142224. Its totient is φ = 1031142222.
The previous prime is 1031142197. The next prime is 1031142239. The reversal of 1031142223 is 3222411301.
It is a happy number.
It is a strong prime.
It is an emirp because it is prime and its reverse (3222411301) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1031142223 - 29 = 1031141711 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 1031142223.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1031142253) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515571111 + 515571112.
It is an arithmetic number, because the mean of its divisors is an integer number (515571112).
Almost surely, 21031142223 is an apocalyptic number.
1031142223 is a deficient number, since it is larger than the sum of its proper divisors (1).
1031142223 is an equidigital number, since it uses as much as digits as its factorization.
1031142223 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 288, while the sum is 19.
The square root of 1031142223 is about 32111.4033172018. The cubic root of 1031142223 is about 1010.2748077495.
Adding to 1031142223 its reverse (3222411301), we get a palindrome (4253553524).
The spelling of 1031142223 in words is "one billion, thirty-one million, one hundred forty-two thousand, two hundred twenty-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •