Search a number
142144143241 = 335942317399
BaseRepresentation
bin1000010001100001110…
…0110111111110001001
3111120220021021122022211
42010120130313332021
54312102400040431
6145144454145121
713161315165532
oct2043034677611
9446807248284
10142144143241
1155312732751
122366b9521a1
1310533b674c9
146c462c9689
153a6e0a82b1
hex2118737f89

142144143241 has 4 divisors (see below), whose sum is σ = 142186464000. Its totient is φ = 142101822484.

The previous prime is 142144143227. The next prime is 142144143257. The reversal of 142144143241 is 142341441241.

Adding to 142144143241 its reverse (142341441241), we get a palindrome (284485584482).

142144143241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142144143241 - 221 = 142142046089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142144146241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21155341 + ... + 21162058.

It is an arithmetic number, because the mean of its divisors is an integer number (35546616000).

Almost surely, 2142144143241 is an apocalyptic number.

It is an amenable number.

142144143241 is a deficient number, since it is larger than the sum of its proper divisors (42320759).

142144143241 is an equidigital number, since it uses as much as digits as its factorization.

142144143241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42320758.

The product of its digits is 12288, while the sum is 31.

The spelling of 142144143241 in words is "one hundred forty-two billion, one hundred forty-four million, one hundred forty-three thousand, two hundred forty-one".

Divisors: 1 3359 42317399 142144143241