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202130041 = 414930001
BaseRepresentation
bin11000000110001…
…00001001111001
3112002100021021211
430003010021321
5403221130131
632020203121
75003035261
oct1403041171
9462307254
10202130041
11a4108323
12578394a1
1332b51999
141cbb87a1
1512b2a5b1
hexc0c4279

202130041 has 4 divisors (see below), whose sum is σ = 207060084. Its totient is φ = 197200000.

The previous prime is 202130039. The next prime is 202130059. The reversal of 202130041 is 140031202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 140031202 = 270015601.

It can be written as a sum of positive squares in 2 ways, for example, as 30415225 + 171714816 = 5515^2 + 13104^2 .

It is a cyclic number.

It is not a de Polignac number, because 202130041 - 21 = 202130039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202130011) 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, 2464960 + ... + 2465041.

It is an arithmetic number, because the mean of its divisors is an integer number (51765021).

Almost surely, 2202130041 is an apocalyptic number.

It is an amenable number.

202130041 is a deficient number, since it is larger than the sum of its proper divisors (4930043).

202130041 is an equidigital number, since it uses as much as digits as its factorization.

202130041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4930042.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 202130041 is about 14217.2444939236. The cubic root of 202130041 is about 586.8723132289.

Adding to 202130041 its reverse (140031202), we get a palindrome (342161243).

The spelling of 202130041 in words is "two hundred two million, one hundred thirty thousand, forty-one".

Divisors: 1 41 4930001 202130041