Search a number
-
+
202141441 = 1711890673
BaseRepresentation
bin11000000110001…
…10111100000001
3112002100211221001
430003012330001
5403222011231
632020332001
75003113435
oct1403067401
9462324831
10202141441
11a4115947
1257844001
1332b56c28
141cbbc9c5
1512b2db61
hexc0c6f01

202141441 has 4 divisors (see below), whose sum is σ = 214032132. Its totient is φ = 190250752.

The previous prime is 202141393. The next prime is 202141451. The reversal of 202141441 is 144141202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 144141202 = 272070601.

It can be written as a sum of positive squares in 2 ways, for example, as 171505216 + 30636225 = 13096^2 + 5535^2 .

It is a cyclic number.

It is not a de Polignac number, because 202141441 - 29 = 202140929 is a prime.

It is a super-2 number, since 2×2021414412 = 81722324339112962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202141451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5945320 + ... + 5945353.

It is an arithmetic number, because the mean of its divisors is an integer number (53508033).

Almost surely, 2202141441 is an apocalyptic number.

It is an amenable number.

202141441 is a deficient number, since it is larger than the sum of its proper divisors (11890691).

202141441 is a wasteful number, since it uses less digits than its factorization.

202141441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11890690.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 202141441 is about 14217.6454098420. The cubic root of 202141441 is about 586.8833460910.

Adding to 202141441 its reverse (144141202), we get a palindrome (346282643).

The spelling of 202141441 in words is "two hundred two million, one hundred forty-one thousand, four hundred forty-one".

Divisors: 1 17 11890673 202141441