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212555112315430 = 252335920347126517
BaseRepresentation
bin110000010101000101010111…
…111101101111101000100110
31000212121001220020110120121011
4300111011113331233220212
5210330000332223043210
62032022245351012434
762525412555214153
oct6025052775575046
91025531806416534
10212555112315430
11617aa131668975
121ba0a73106a11a
13917ab26a61061
143a6ba180d322a
1519890a61c7d8a
hexc15157f6fa26

212555112315430 has 64 divisors (see below), whose sum is σ = 400368862817280. Its totient is φ = 81094274262144.

The previous prime is 212555112315379. The next prime is 212555112315451. The reversal of 212555112315430 is 34513211555212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1679988532 + ... + 1680115048.

It is an arithmetic number, because the mean of its divisors is an integer number (6255763481520).

Almost surely, 2212555112315430 is an apocalyptic number.

212555112315430 is a deficient number, since it is larger than the sum of its proper divisors (187813750501850).

212555112315430 is a wasteful number, since it uses less digits than its factorization.

212555112315430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147253.

The product of its (nonzero) digits is 180000, while the sum is 40.

The spelling of 212555112315430 in words is "two hundred twelve trillion, five hundred fifty-five billion, one hundred twelve million, three hundred fifteen thousand, four hundred thirty".

Divisors: 1 2 5 10 23 46 115 230 359 718 1795 3590 8257 16514 20347 40694 41285 82570 101735 126517 203470 253034 467981 632585 935962 1265170 2339905 2909891 4679810 5819782 7304573 14549455 14609146 29098910 36522865 45419603 73045730 90839206 168005179 227098015 336010358 454196030 840025895 1044650869 1680051790 2089301738 2574241399 5148482798 5223254345 10446508690 12871206995 25742413990 59207552177 118415104354 296037760885 592075521770 924152662241 1848305324482 4620763311205 9241526622410 21255511231543 42511022463086 106277556157715 212555112315430