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321213130341040 = 2457281942125087
BaseRepresentation
bin100100100001001000100001…
…0100001111111101010110000
31120010022200020100011122020201
41021002101002201333222300
5314100223442331403130
63055055135215444544
7124441611545333500
oct11102210241775260
91503280210148221
10321213130341040
11933917a6083173
123003930b526754
1310a30364380002
145946b26d95a00
152720755ecbbca
hex124244287fab0

321213130341040 has 60 divisors (see below), whose sum is σ = 868750410182976. Its totient is φ = 110130216115584.

The previous prime is 321213130341029. The next prime is 321213130341073. The reversal of 321213130341040 is 40143031312123.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40971058624 + ... + 40971066463.

Almost surely, 2321213130341040 is an apocalyptic number.

It is an amenable number.

321213130341040 is an abundant number, since it is smaller than the sum of its proper divisors (547537279841936).

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

321213130341040 is a wasteful number, since it uses less digits than its factorization.

321213130341040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81942125114 (or 81942125101 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 321213130341040 its reverse (40143031312123), we get a palindrome (361356161653163).

The spelling of 321213130341040 in words is "three hundred twenty-one trillion, two hundred thirteen billion, one hundred thirty million, three hundred forty-one thousand, forty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 49 56 70 80 98 112 140 196 245 280 392 490 560 784 980 1960 3920 81942125087 163884250174 327768500348 409710625435 573594875609 655537000696 819421250870 1147189751218 1311074001392 1638842501740 2294379502436 2867974378045 3277685003480 4015164129263 4588759004872 5735948756090 6555370006960 8030328258526 9177518009744 11471897512180 16060656517052 20075820646315 22943795024360 32121313034104 40151641292630 45887590048720 64242626068208 80303282585260 160606565170520 321213130341040