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220246842 = 23972231697
BaseRepresentation
bin11010010000010…
…11001100111010
3120100102200212110
431020023030322
5422340344332
633504353150
75313032034
oct1510131472
9510380773
10220246842
11103361792
12619157b6
1336825b9a
1421372c54
15145084cc
hexd20b33a

220246842 has 32 divisors (see below), whose sum is σ = 447293952. Its totient is φ = 72290304.

The previous prime is 220246837. The next prime is 220246843. The reversal of 220246842 is 248642022.

It is not an unprimeable number, because it can be changed into a prime (220246843) 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 15 ways as a sum of consecutive naturals, for example, 128938 + ... + 130634.

It is an arithmetic number, because the mean of its divisors is an integer number (13977936).

Almost surely, 2220246842 is an apocalyptic number.

220246842 is an abundant number, since it is smaller than the sum of its proper divisors (227047110).

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

220246842 is a wasteful number, since it uses less digits than its factorization.

220246842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2022.

The product of its (nonzero) digits is 12288, while the sum is 30.

The square root of 220246842 is about 14840.7156835511. The cubic root of 220246842 is about 603.9067678414.

Adding to 220246842 its reverse (248642022), we get a palindrome (468888864).

The spelling of 220246842 in words is "two hundred twenty million, two hundred forty-six thousand, eight hundred forty-two".

Divisors: 1 2 3 6 97 194 223 291 446 582 669 1338 1697 3394 5091 10182 21631 43262 64893 129786 164609 329218 378431 493827 756862 987654 1135293 2270586 36707807 73415614 110123421 220246842