Search a number
-
+
20130030143 is a prime number
BaseRepresentation
bin10010101111110101…
…111110001000111111
31220221220012111001222
4102233311332020333
5312211241431033
613125252223555
71311561301346
oct225765761077
956856174058
1020130030143
11859a971653
123a9960abbb
131b8a604052
14d8d692b5d
157cc3a3598
hex4afd7e23f

20130030143 has 2 divisors, whose sum is σ = 20130030144. Its totient is φ = 20130030142.

The previous prime is 20130030127. The next prime is 20130030163. The reversal of 20130030143 is 34103003102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20130030143 - 24 = 20130030127 is a prime.

It is a super-2 number, since 2×201300301432 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20130030103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10065015071 + 10065015072.

It is an arithmetic number, because the mean of its divisors is an integer number (10065015072).

Almost surely, 220130030143 is an apocalyptic number.

20130030143 is a deficient number, since it is larger than the sum of its proper divisors (1).

20130030143 is an equidigital number, since it uses as much as digits as its factorization.

20130030143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20130030143 its reverse (34103003102), we get a palindrome (54233033245).

The spelling of 20130030143 in words is "twenty billion, one hundred thirty million, thirty thousand, one hundred forty-three".