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12005250660 = 223251323223063
BaseRepresentation
bin10110010111001000…
…11001011001100100
31010222122222220220100
423023210121121210
5144041321010120
65303134104100
7603333642534
oct131344313144
933878886810
1012005250660
115100718567
1223b064b030
131194282720
1481c5c74c4
154a3e5b490
hex2cb919664

12005250660 has 144 divisors (see below), whose sum is σ = 40922429184. Its totient is φ = 2826641664.

The previous prime is 12005250641. The next prime is 12005250701. The reversal of 12005250660 is 6605250021.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 57712 + ... + 165351.

It is an arithmetic number, because the mean of its divisors is an integer number (284183536).

Almost surely, 212005250660 is an apocalyptic number.

12005250660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12005250660 is an abundant number, since it is smaller than the sum of its proper divisors (28917178524).

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

12005250660 is a wasteful number, since it uses less digits than its factorization.

12005250660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223114 (or 223109 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The spelling of 12005250660 in words is "twelve billion, five million, two hundred fifty thousand, six hundred sixty".

Divisors: 1 2 3 4 5 6 9 10 12 13 15 18 20 23 26 30 36 39 45 46 52 60 65 69 78 90 92 115 117 130 138 156 180 195 207 230 234 260 276 299 345 390 414 460 468 585 598 690 780 828 897 1035 1170 1196 1380 1495 1794 2070 2340 2691 2990 3588 4140 4485 5382 5980 8970 10764 13455 17940 26910 53820 223063 446126 669189 892252 1115315 1338378 2007567 2230630 2676756 2899819 3345945 4015134 4461260 5130449 5799638 6691890 8030268 8699457 10037835 10260898 11599276 13383780 14499095 15391347 17398914 20075670 20521796 25652245 26098371 28998190 30782694 34797828 40151340 43497285 46174041 51304490 52196742 57996380 61565388 66695837 76956735 86994570 92348082 102608980 104393484 130491855 133391674 153913470 173989140 184696164 200087511 230870205 260983710 266783348 307826940 333479185 400175022 461740410 521967420 600262533 666958370 800350044 923480820 1000437555 1200525066 1333916740 2000875110 2401050132 3001312665 4001750220 6002625330 12005250660