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200020120212 = 2231119659121021
BaseRepresentation
bin1011101001001000100…
…0001101001010010100
3201010021202010220020110
42322102020031022110
511234120122321322
6231515445203020
720310453653343
oct2722210151224
9633252126213
10200020120212
1177912163880
1232922400470
1315b28545223
149976a3bb5a
15530a0eac0c
hex2e9220d294

200020120212 has 96 divisors (see below), whose sum is σ = 536756774400. Its totient is φ = 57334435200.

The previous prime is 200020120199. The next prime is 200020120219. The reversal of 200020120212 is 212021020002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200020120219) 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, 1592262 + ... + 1713282.

It is an arithmetic number, because the mean of its divisors is an integer number (5591216400).

Almost surely, 2200020120212 is an apocalyptic number.

200020120212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200020120212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268378387200).

200020120212 is an abundant number, since it is smaller than the sum of its proper divisors (336736654188).

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

200020120212 is a wasteful number, since it uses less digits than its factorization.

200020120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121717 (or 121715 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 200020120212 its reverse (212021020002), we get a palindrome (412041140214).

The spelling of 200020120212 in words is "two hundred billion, twenty million, one hundred twenty thousand, two hundred twelve".

Divisors: 1 2 3 4 6 11 12 19 22 33 38 44 57 66 76 114 132 209 228 418 627 659 836 1254 1318 1977 2508 2636 3954 7249 7908 12521 14498 21747 25042 28996 37563 43494 50084 75126 86988 121021 137731 150252 242042 275462 363063 413193 484084 550924 726126 826386 1331231 1452252 1652772 2299399 2662462 3993693 4598798 5324924 6898197 7987386 9197596 13796394 15974772 25293389 27592788 50586778 75880167 79752839 101173556 151760334 159505678 239258517 303520668 319011356 478517034 877281229 957034068 1515303941 1754562458 2631843687 3030607882 3509124916 4545911823 5263687374 6061215764 9091823646 10527374748 16668343351 18183647292 33336686702 50005030053 66673373404 100010060106 200020120212