Search a number
-
+
30144103121 = 112740373011
BaseRepresentation
bin11100000100101110…
…101000001011010001
32212210210110002200202
4130010232220023101
5443213342244441
621503100424545
72114666435366
oct340456501321
985723402622
1030144103121
1111869618920
125a13248155
132ac51aac12
14165d63a46d
15bb65e119b
hex704ba82d1

30144103121 has 4 divisors (see below), whose sum is σ = 32884476144. Its totient is φ = 27403730100.

The previous prime is 30144103103. The next prime is 30144103141. The reversal of 30144103121 is 12130144103.

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 30144103121 - 210 = 30144102097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30144103093 and 30144103102.

It is not an unprimeable number, because it can be changed into a prime (30144103141) 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, 1370186495 + ... + 1370186516.

It is an arithmetic number, because the mean of its divisors is an integer number (8221119036).

Almost surely, 230144103121 is an apocalyptic number.

It is an amenable number.

30144103121 is a deficient number, since it is larger than the sum of its proper divisors (2740373023).

30144103121 is a wasteful number, since it uses less digits than its factorization.

30144103121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2740373022.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 30144103121 its reverse (12130144103), we get a palindrome (42274247224).

The spelling of 30144103121 in words is "thirty billion, one hundred forty-four million, one hundred three thousand, one hundred twenty-one".

Divisors: 1 11 2740373011 30144103121