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21364710760360 = 2351171683889589
BaseRepresentation
bin1001101101110010110111…
…11111101101111110101000
32210122110001102112012000001
410312321123333231332220
510300014411423312420
6113234451305552344
74333356310053232
oct466713377557650
983573042465001
1021364710760360
1168977a527a270
12249075a4a56b4
13bbc8b6a95b06
1453c0b3b89252
15270b29d7eb0a
hex136e5bfedfa8

21364710760360 has 64 divisors (see below), whose sum is σ = 53179254518400. Its totient is φ = 7659563385600.

The previous prime is 21364710760339. The next prime is 21364710760409. The reversal of 21364710760360 is 6306701746312.

It is a self number, because there is not a number n which added to its sum of digits gives 21364710760360.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 341913555 + ... + 341976034.

It is an arithmetic number, because the mean of its divisors is an integer number (830925851850).

Almost surely, 221364710760360 is an apocalyptic number.

21364710760360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21364710760360 is an abundant number, since it is smaller than the sum of its proper divisors (31814543758040).

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

21364710760360 is a wasteful number, since it uses less digits than its factorization.

21364710760360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683889682 (or 683889678 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 46.

The spelling of 21364710760360 in words is "twenty-one trillion, three hundred sixty-four billion, seven hundred ten million, seven hundred sixty thousand, three hundred sixty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 71 88 110 142 220 284 355 440 568 710 781 1420 1562 2840 3124 3905 6248 7810 15620 31240 683889589 1367779178 2735558356 3419447945 5471116712 6838895890 7522785479 13677791780 15045570958 27355583560 30091141916 37613927395 48556160819 60182283832 75227854790 97112321638 150455709580 194224643276 242780804095 300911419160 388449286552 485561608190 534117769009 971123216380 1068235538018 1942246432760 2136471076036 2670588845045 4272942152072 5341177690090 10682355380180 21364710760360