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220531041 = 3271563613
BaseRepresentation
bin11010010010100…
…00100101100001
3120100222010201100
431021100211201
5422423443131
633514425013
75315324433
oct1511204541
9510863640
10220531041
11103536265
1261a32169
13368c5353
1421408653
15145627e6
hexd250961

220531041 has 24 divisors (see below), whose sum is σ = 324133056. Its totient is φ = 144456480.

The previous prime is 220531037. The next prime is 220531079. The reversal of 220531041 is 140135022.

It is not a de Polignac number, because 220531041 - 22 = 220531037 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220531001) 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 23 ways as a sum of consecutive naturals, for example, 359451 + ... + 360063.

It is an arithmetic number, because the mean of its divisors is an integer number (13505544).

Almost surely, 2220531041 is an apocalyptic number.

It is an amenable number.

220531041 is a deficient number, since it is larger than the sum of its proper divisors (103602015).

220531041 is a wasteful number, since it uses less digits than its factorization.

220531041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253 (or 1250 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 220531041 is about 14850.2875729731. The cubic root of 220531041 is about 604.1664097491.

Adding to 220531041 its reverse (140135022), we get a palindrome (360666063).

The spelling of 220531041 in words is "two hundred twenty million, five hundred thirty-one thousand, forty-one".

Divisors: 1 3 9 71 213 563 613 639 1689 1839 5067 5517 39973 43523 119919 130569 345119 359757 391707 1035357 3106071 24503449 73510347 220531041