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43122244220 = 225113710614993
BaseRepresentation
bin101000001010010010…
…010011101001111100
311010022021002222101022
4220022102103221330
51201303243303340
631450551203312
73054416012426
oct501222235174
9133267088338
1043122244220
1117319423370
128435676538
1340b2b98353
142131115816
1511c5b763b5
hexa0a493a7c

43122244220 has 96 divisors (see below), whose sum is σ = 101575083456. Its totient is φ = 15239577600.

The previous prime is 43122244169. The next prime is 43122244237. The reversal of 43122244220 is 2244222134.

It is a self number, because there is not a number n which added to its sum of digits gives 43122244220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8634044 + ... + 8639036.

It is an arithmetic number, because the mean of its divisors is an integer number (1058073786).

Almost surely, 243122244220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43122244220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50787541728).

43122244220 is an abundant number, since it is smaller than the sum of its proper divisors (58452839236).

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

43122244220 is a wasteful number, since it uses less digits than its factorization.

43122244220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6111 (or 6109 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 43122244220 its reverse (2244222134), we get a palindrome (45366466354).

The spelling of 43122244220 in words is "forty-three billion, one hundred twenty-two million, two hundred forty-four thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 37 44 55 74 110 148 185 220 370 407 740 814 1061 1628 2035 2122 4070 4244 4993 5305 8140 9986 10610 11671 19972 21220 23342 24965 39257 46684 49930 54923 58355 78514 99860 109846 116710 157028 184741 196285 219692 233420 274615 369482 392570 431827 549230 738964 785140 863654 923705 1098460 1727308 1847410 2032151 2159135 3694820 4064302 4318270 5297573 8128604 8636540 10160755 10595146 20321510 21190292 26487865 40643020 52975730 58273303 105951460 116546606 196010201 233093212 291366515 392020402 582733030 784040804 980051005 1165466060 1960102010 2156112211 3920204020 4312224422 8624448844 10780561055 21561122110 43122244220