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220145341 = 1316934257
BaseRepresentation
bin11010001111100…
…10011010111101
3120100020112122011
431013302122331
5422324122331
633502251221
75312130103
oct1507623275
9510215564
10220145341
111032a24a9
1261886b11
13367bb920
1421347c73
15144d83b1
hexd1f26bd

220145341 has 4 divisors (see below), whose sum is σ = 237079612. Its totient is φ = 203211072.

The previous prime is 220145329. The next prime is 220145347. The reversal of 220145341 is 143541022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12180100 + 207965241 = 3490^2 + 14421^2 .

It is a cyclic number.

It is not a de Polignac number, because 220145341 - 25 = 220145309 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 (220145347) 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 in 3 ways as a sum of consecutive naturals, for example, 8467116 + ... + 8467141.

It is an arithmetic number, because the mean of its divisors is an integer number (59269903).

Almost surely, 2220145341 is an apocalyptic number.

It is an amenable number.

220145341 is a deficient number, since it is larger than the sum of its proper divisors (16934271).

220145341 is a wasteful number, since it uses less digits than its factorization.

220145341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16934270.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 220145341 is about 14837.2956093757. The cubic root of 220145341 is about 603.8139832200.

Adding to 220145341 its reverse (143541022), we get a palindrome (363686363).

The spelling of 220145341 in words is "two hundred twenty million, one hundred forty-five thousand, three hundred forty-one".

Divisors: 1 13 16934257 220145341