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4420020220220 = 22511353372715271
BaseRepresentation
bin100000001010001110110…
…1111000011000100111100
3120122112211210211122002202
41000110131233003010330
51034404200134021340
613222310153011032
7634223135655113
oct100243557030474
916575753748082
104420020220220
11145457a203810
125b47679b3a78
13260a63071117
14113d0436cc7a
1579e952b5c15
hex4051dbc313c

4420020220220 has 96 divisors (see below), whose sum is σ = 10157939398656. Its totient is φ = 1602191923200.

The previous prime is 4420020220201. The next prime is 4420020220243. The reversal of 4420020220220 is 220220200244.

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 = 4420020220192 and 4420020220201.

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 31 ways as a sum of consecutive naturals, for example, 289431185 + ... + 289446455.

It is an arithmetic number, because the mean of its divisors is an integer number (105811868736).

Almost surely, 24420020220220 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 4420020220220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5078969699328).

4420020220220 is an abundant number, since it is smaller than the sum of its proper divisors (5737919178436).

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

4420020220220 is a wasteful number, since it uses less digits than its factorization.

4420020220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19371 (or 19369 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 4420020220220 its reverse (220220200244), we get a palindrome (4640240420464).

The spelling of 4420020220220 in words is "four trillion, four hundred twenty billion, twenty million, two hundred twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 353 706 1412 1765 3530 3727 3883 7060 7454 7766 14908 15271 15532 18635 19415 30542 37270 38830 40997 61084 74540 76355 77660 81994 152710 163988 167981 204985 305420 335962 409970 671924 819940 839905 1315631 1679810 2631262 3359620 5262524 5390663 6578155 10781326 13156310 14471941 21562652 26312620 26953315 28943882 53906630 56915017 57887764 59297293 72359705 107813260 113830034 118594586 144719410 227660068 237189172 284575085 289438820 296486465 569150170 592972930 626065187 1138300340 1185945860 1252130374 2504260748 3130325935 6260651870 12521303740 20091001001 40182002002 80364004004 100455005005 200910010010 221001011011 401820020020 442002022022 884004044044 1105005055055 2210010110110 4420020220220