Search a number
-
+
10500201281 is a prime number
BaseRepresentation
bin10011100011101110…
…00101101101000001
31000002202222111021202
421301313011231001
5133001022420111
64453531430545
7521130144503
oct116167055501
930082874252
1010500201281
1144a90a96a9
1220505b5455
13cb451306b
1471876bd73
15416c65b3b
hex271dc5b41

10500201281 has 2 divisors, whose sum is σ = 10500201282. Its totient is φ = 10500201280.

The previous prime is 10500201241. The next prime is 10500201323. The reversal of 10500201281 is 18210200501.

It is a happy number.

10500201281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9397363600 + 1102837681 = 96940^2 + 33209^2 .

It is an emirp because it is prime and its reverse (18210200501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10500201281 - 210 = 10500200257 is a prime.

It is a super-2 number, since 2×105002012812 (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10500201241) by changing a digit.

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 as a sum of consecutive naturals, namely, 5250100640 + 5250100641.

It is an arithmetic number, because the mean of its divisors is an integer number (5250100641).

Almost surely, 210500201281 is an apocalyptic number.

It is an amenable number.

10500201281 is a deficient number, since it is larger than the sum of its proper divisors (1).

10500201281 is an equidigital number, since it uses as much as digits as its factorization.

10500201281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 10500201281 its reverse (18210200501), we get a palindrome (28710401782).

The spelling of 10500201281 in words is "ten billion, five hundred million, two hundred one thousand, two hundred eighty-one".