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212301021320 = 2356779216799
BaseRepresentation
bin1100010110111000100…
…0001000000010001000
3202021222121211022110122
43011232020020002020
511434243030140240
6241310231402412
721224005622633
oct3055610100210
9667877738418
10212301021320
1182044434623
123518b223408
131703494b60b
14a3bda9ac1a
1557c83564b5
hex316e208088

212301021320 has 32 divisors (see below), whose sum is σ = 484806816000. Its totient is φ = 83652938688.

The previous prime is 212301021319. The next prime is 212301021353. The reversal of 212301021320 is 23120103212.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39605720 + ... + 39611079.

It is an arithmetic number, because the mean of its divisors is an integer number (15150213000).

Almost surely, 2212301021320 is an apocalyptic number.

212301021320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212301021320 is an abundant number, since it is smaller than the sum of its proper divisors (272505794680).

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

212301021320 is a wasteful number, since it uses less digits than its factorization.

212301021320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79216877 (or 79216873 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 212301021320 its reverse (23120103212), we get a palindrome (235421124532).

The spelling of 212301021320 in words is "two hundred twelve billion, three hundred one million, twenty-one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 67 134 268 335 536 670 1340 2680 79216799 158433598 316867196 396083995 633734392 792167990 1584335980 3168671960 5307525533 10615051066 21230102132 26537627665 42460204264 53075255330 106150510660 212301021320