Search a number
-
+
202243141 = 1136917789
BaseRepresentation
bin11000000110111…
…11110001000101
3112002120000102201
430003133301011
5403233240031
632022434501
75004016102
oct1403376105
9462500381
10202243141
11a41852a1
1257892a31
1332b912c9
141cc07aa9
1512b4dd61
hexc0dfc45

202243141 has 4 divisors (see below), whose sum is σ = 202272300. Its totient is φ = 202213984.

The previous prime is 202243133. The next prime is 202243159. The reversal of 202243141 is 141342202.

202243141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 167184900 + 35058241 = 12930^2 + 5921^2 .

It is a cyclic number.

It is not a de Polignac number, because 202243141 - 23 = 202243133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202223141) 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, 2475 + ... + 20263.

It is an arithmetic number, because the mean of its divisors is an integer number (50568075).

Almost surely, 2202243141 is an apocalyptic number.

It is an amenable number.

202243141 is a deficient number, since it is larger than the sum of its proper divisors (29159).

202243141 is a wasteful number, since it uses less digits than its factorization.

202243141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29158.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 202243141 is about 14221.2215016854. The cubic root of 202243141 is about 586.9817524827.

Adding to 202243141 its reverse (141342202), we get a palindrome (343585343).

The spelling of 202243141 in words is "two hundred two million, two hundred forty-three thousand, one hundred forty-one".

Divisors: 1 11369 17789 202243141