Search a number
-
+
202144341281 is a prime number
BaseRepresentation
bin1011110001000010111…
…1011101110100100001
3201022202210020111201212
42330100233131310201
511302442422410111
6232510330435505
720414216356601
oct2742057356441
9638683214655
10202144341281
1178802235583
1233215892b95
13160a666387c
149ad8bd0c01
1553d184998b
hex2f10bddd21

202144341281 has 2 divisors, whose sum is σ = 202144341282. Its totient is φ = 202144341280.

The previous prime is 202144341241. The next prime is 202144341331. The reversal of 202144341281 is 182143441202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 174215246881 + 27929094400 = 417391^2 + 167120^2 .

It is a cyclic number.

It is not a de Polignac number, because 202144341281 - 234 = 184964472097 is a prime.

It is a super-2 number, since 2×2021443412812 (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (202144341241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101072170640 + 101072170641.

It is an arithmetic number, because the mean of its divisors is an integer number (101072170641).

Almost surely, 2202144341281 is an apocalyptic number.

It is an amenable number.

202144341281 is a deficient number, since it is larger than the sum of its proper divisors (1).

202144341281 is an equidigital number, since it uses as much as digits as its factorization.

202144341281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12288, while the sum is 32.

Adding to 202144341281 its reverse (182143441202), we get a palindrome (384287782483).

The spelling of 202144341281 in words is "two hundred two billion, one hundred forty-four million, three hundred forty-one thousand, two hundred eighty-one".