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1305352344020 = 225239729254871
BaseRepresentation
bin10010111111101101000…
…100000001000111010100
311121210100020201200220212
4102333231010001013110
5132341330200002040
62435400502544552
7163210563565034
oct22775504010724
94553306650825
101305352344020
114636624054aa
12190b9ba38158
139612bc500ca
14472723678c4
1523e4dc79d65
hex12fed1011d4

1305352344020 has 48 divisors (see below), whose sum is σ = 2889913275648. Its totient is φ = 494290283520.

The previous prime is 1305352344013. The next prime is 1305352344067. The reversal of 1305352344020 is 204432535031.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14582816 + ... + 14672055.

It is an arithmetic number, because the mean of its divisors is an integer number (60206526576).

Almost surely, 21305352344020 is an apocalyptic number.

1305352344020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1305352344020 is an abundant number, since it is smaller than the sum of its proper divisors (1584560931628).

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

1305352344020 is a wasteful number, since it uses less digits than its factorization.

1305352344020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29255000 (or 29254998 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 1305352344020 its reverse (204432535031), we get a palindrome (1509784879051).

The spelling of 1305352344020 in words is "one trillion, three hundred five billion, three hundred fifty-two million, three hundred forty-four thousand, twenty".

Divisors: 1 2 4 5 10 20 23 46 92 97 115 194 230 388 460 485 970 1940 2231 4462 8924 11155 22310 44620 29254871 58509742 117019484 146274355 292548710 585097420 672862033 1345724066 2691448132 2837722487 3364310165 5675444974 6728620330 11350889948 13457240660 14188612435 28377224870 56754449740 65267617201 130535234402 261070468804 326338086005 652676172010 1305352344020