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220541382 = 23213193529
BaseRepresentation
bin11010010010100…
…11000111000110
3120100222122220100
431021103013012
5422424311012
633514544530
75315366535
oct1511230706
9510878810
10220541382
11103543006
1261a38146
13368c9c79
142140c31c
15145658dc
hexd2531c6

220541382 has 24 divisors (see below), whose sum is σ = 481492440. Its totient is φ = 72951840.

The previous prime is 220541381. The next prime is 220541467. The reversal of 220541382 is 283145022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220541381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44407 + ... + 49122.

It is an arithmetic number, because the mean of its divisors is an integer number (20062185).

Almost surely, 2220541382 is an apocalyptic number.

220541382 is an abundant number, since it is smaller than the sum of its proper divisors (260951058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220541382 is a wasteful number, since it uses less digits than its factorization.

220541382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93668 (or 93665 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 220541382 is about 14850.6357439673. The cubic root of 220541382 is about 604.1758529960.

It can be divided in two parts, 22054 and 1382, that added together give a triangular number (23436 = T216).

The spelling of 220541382 in words is "two hundred twenty million, five hundred forty-one thousand, three hundred eighty-two".

Divisors: 1 2 3 6 9 18 131 262 393 786 1179 2358 93529 187058 280587 561174 841761 1683522 12252299 24504598 36756897 73513794 110270691 220541382