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211053421551320 = 23519649926851717
BaseRepresentation
bin101111111111001110110100…
…001110000101111011011000
31000200021111202211100201112122
4233333032310032011323120
5210130344401404120240
62024512334154200412
762312051351301155
oct5777166416057330
91020244684321478
10211053421551320
1161280287350477
121b807697a23108
13909c33828301a
143a1907c0a722c
15195eeb56a14b5
hexbff3b4385ed8

211053421551320 has 32 divisors (see below), whose sum is σ = 474872632830000. Its totient is φ = 84420935849088.

The previous prime is 211053421551289. The next prime is 211053421551373. The reversal of 211053421551320 is 23155124350112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5565899 + ... + 21285818.

Almost surely, 2211053421551320 is an apocalyptic number.

211053421551320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211053421551320 is an abundant number, since it is smaller than the sum of its proper divisors (263819211278680).

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

211053421551320 is a wasteful number, since it uses less digits than its factorization.

211053421551320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27048227 (or 27048223 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 211053421551320 in words is "two hundred eleven trillion, fifty-three billion, four hundred twenty-one million, five hundred fifty-one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 196499 392998 785996 982495 1571992 1964990 3929980 7859960 26851717 53703434 107406868 134258585 214813736 268517170 537034340 1074068680 5276335538783 10552671077566 21105342155132 26381677693915 42210684310264 52763355387830 105526710775660 211053421551320