Search a number
-
+
20012020012212 = 22331591657550267
BaseRepresentation
bin1001000110011011010010…
…10110000001010010110100
32121212010112002020101121020
410203031221112001102310
510110334104110342322
6110321221200421140
74133551340315154
oct443155126012264
977763462211536
1020012020012212
116416060648128
1222b25690177b0
13b221826343b7
144d28307a8764
1524a85a25b05c
hex1233695814b4

20012020012212 has 96 divisors (see below), whose sum is σ = 49047631933440. Its totient is φ = 6342233852160.

The previous prime is 20012020012207. The next prime is 20012020012213. The reversal of 20012020012212 is 21221002021002.

It is a junction number, because it is equal to n+sod(n) for n = 20012020012191 and 20012020012200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012020012213) by changing a digit.

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, 36092703 + ... + 36642969.

It is an arithmetic number, because the mean of its divisors is an integer number (510912832640).

Almost surely, 220012020012212 is an apocalyptic number.

It is an amenable number.

20012020012212 is an abundant number, since it is smaller than the sum of its proper divisors (29035611921228).

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

20012020012212 is a wasteful number, since it uses less digits than its factorization.

20012020012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552021 (or 552019 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20012020012212 its reverse (21221002021002), we get a palindrome (41233022033214).

The spelling of 20012020012212 in words is "twenty trillion, twelve billion, twenty million, twelve thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 31 59 62 93 118 124 177 186 236 354 372 708 1657 1829 3314 3658 4971 5487 6628 7316 9942 10974 19884 21948 51367 97763 102734 154101 195526 205468 293289 308202 391052 550267 586578 616404 1100534 1173156 1650801 2201068 3030653 3301602 6061306 6603204 9091959 12122612 17058277 18183918 32465753 34116554 36367836 51174831 64931506 68233108 97397259 102349662 129863012 194794518 204699324 389589036 911792419 1006438343 1823584838 2012876686 2735377257 3019315029 3647169676 4025753372 5470754514 6038630058 10941509028 12077260116 28265564989 53795752721 56531129978 84796694967 107591505442 113062259956 161387258163 169593389934 215183010884 322774516326 339186779868 645549032652 1667668334351 3335336668702 5003005003053 6670673337404 10006010006106 20012020012212