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20000210222220 = 22354171211141717
BaseRepresentation
bin1001000110000101010010…
…11011001111110010001100
32121211000001001000220022220
410203002221123033302030
510110140412304102340
6110311545243535340
74132652565622434
oct443025133176214
977730031026286
1020000210222220
1164110502a2108
1222b0211b2a550
13b2101ca09a97
144d20301412c4
1524a3b855ded0
hex1230a96cfc8c

20000210222220 has 96 divisors (see below), whose sum is σ = 57374562845376. Its totient is φ = 5202571468800.

The previous prime is 20000210222207. The next prime is 20000210222227. The reversal of 20000210222220 is 2222201200002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20000210222220.

It is not an unprimeable number, because it can be changed into a prime (20000210222227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16946802 + ... + 18088518.

It is an arithmetic number, because the mean of its divisors is an integer number (597651696306).

Almost surely, 220000210222220 is an apocalyptic number.

20000210222220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20000210222220 is an abundant number, since it is smaller than the sum of its proper divisors (37374352623156).

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

20000210222220 is a wasteful number, since it uses less digits than its factorization.

20000210222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148891 (or 1148889 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 20000210222220 its reverse (2222201200002), we get a palindrome (22222411422222).

The spelling of 20000210222220 in words is "twenty trillion, two hundred ten million, two hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 41 60 82 123 164 205 246 410 492 615 820 1230 2460 7121 14242 21363 28484 35605 42726 71210 85452 106815 142420 213630 291961 427260 583922 875883 1141717 1167844 1459805 1751766 2283434 2919610 3425151 3503532 4379415 4566868 5708585 5839220 6850302 8758830 11417170 13700604 17125755 17517660 22834340 34251510 46810397 68503020 93620794 140431191 187241588 234051985 280862382 468103970 561724764 702155955 936207940 1404311910 2808623820 8130166757 16260333514 24390500271 32520667028 40650833785 48781000542 81301667570 97562001084 121952501355 162603335140 243905002710 333336837037 487810005420 666673674074 1000010511111 1333347348148 1666684185185 2000021022222 3333368370370 4000042044444 5000052555555 6666736740740 10000105111110 20000210222220