Search a number
-
+
12143130242 = 219833850073
BaseRepresentation
bin10110100111100100…
…10111011010000010
31011100021102221010112
423103302113122002
5144332120131432
65324541231322
7606626622035
oct132362273202
934307387115
1012143130242
115171531531
12242a862542
1311b69c9889
14832a3901c
154b10e47b2
hex2d3c97682

12143130242 has 16 divisors (see below), whose sum is σ = 19404372960. Its totient is φ = 5682706272.

The previous prime is 12143130203. The next prime is 12143130289. The reversal of 12143130242 is 24203134121.

12143130242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×121431302422 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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, 1921883 + ... + 1928190.

It is an arithmetic number, because the mean of its divisors is an integer number (1212773310).

Almost surely, 212143130242 is an apocalyptic number.

12143130242 is a deficient number, since it is larger than the sum of its proper divisors (7261242718).

12143130242 is a wasteful number, since it uses less digits than its factorization.

12143130242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3850177.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12143130242 its reverse (24203134121), we get a palindrome (36346264363).

The spelling of 12143130242 in words is "twelve billion, one hundred forty-three million, one hundred thirty thousand, two hundred forty-two".

Divisors: 1 2 19 38 83 166 1577 3154 3850073 7700146 73151387 146302774 319556059 639112118 6071565121 12143130242