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13213312222020 = 2235239574863929
BaseRepresentation
bin1100000001000111011011…
…0010000000001101000100
31201210011212110002011022220
43000101312302000031010
53212441330412101040
644034040053452340
72532426123515331
oct300216662001504
951704773064286
1013213312222020
114234809308379
1215949b36410b0
1374b018c66131
14339756107988
1517da966832d0
hexc0476c80344

13213312222020 has 48 divisors (see below), whose sum is σ = 38605851365760. Its totient is φ = 3370352102656.

The previous prime is 13213312222007. The next prime is 13213312222021. The reversal of 13213312222020 is 2022221331231.

It is not an unprimeable number, because it can be changed into a prime (13213312222021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4787430585 + ... + 4787433344.

It is an arithmetic number, because the mean of its divisors is an integer number (804288570120).

Almost surely, 213213312222020 is an apocalyptic number.

13213312222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13213312222020 is an abundant number, since it is smaller than the sum of its proper divisors (25392539143740).

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

13213312222020 is a wasteful number, since it uses less digits than its factorization.

13213312222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9574863964 (or 9574863962 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 13213312222020 its reverse (2022221331231), we get a palindrome (15235533553251).

The spelling of 13213312222020 in words is "thirteen trillion, two hundred thirteen billion, three hundred twelve million, two hundred twenty-two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 23 30 46 60 69 92 115 138 230 276 345 460 690 1380 9574863929 19149727858 28724591787 38299455716 47874319645 57449183574 95748639290 114898367148 143622958935 191497278580 220221870367 287245917870 440443740734 574491835740 660665611101 880887481468 1101109351835 1321331222202 2202218703670 2642662444404 3303328055505 4404437407340 6606656111010 13213312222020