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42230320220 = 22511892156809
BaseRepresentation
bin100111010101000111…
…111000110001011100
311001000002210112200002
4213111013320301130
51142441430221340
631222250153432
73023335541054
oct472507706134
9131002715602
1042230320220
1116a00a076a0
128226a22878
133ca016b87a
14208889c564
1511726e2715
hex9d51f8c5c

42230320220 has 48 divisors (see below), whose sum is σ = 97832901600. Its totient is φ = 15183928320.

The previous prime is 42230320199. The next prime is 42230320243. The reversal of 42230320220 is 2202303224.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 42230320192 and 42230320201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1058825 + ... + 1097984.

It is an arithmetic number, because the mean of its divisors is an integer number (2038185450).

Almost surely, 242230320220 is an apocalyptic number.

It is an amenable number.

42230320220 is an abundant number, since it is smaller than the sum of its proper divisors (55602581380).

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

42230320220 is a wasteful number, since it uses less digits than its factorization.

42230320220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156918 (or 2156916 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 42230320220 its reverse (2202303224), we get a palindrome (44432623444).

The spelling of 42230320220 in words is "forty-two billion, two hundred thirty million, three hundred twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 89 110 178 220 356 445 890 979 1780 1958 3916 4895 9790 19580 2156809 4313618 8627236 10784045 21568090 23724899 43136180 47449798 94899596 118624495 191956001 237248990 383912002 474497980 767824004 959780005 1919560010 2111516011 3839120020 4223032022 8446064044 10557580055 21115160110 42230320220