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212320231210 = 25167241641823
BaseRepresentation
bin1100010110111101000…
…1011001111100101010
3202022000221222021111001
43011233101121330222
511434312434344320
6241312155225214
721224331121303
oct3055721317452
9668027867431
10212320231210
118205426526a
123519574820a
1317038916209
14a3c245b7aa
1557c9d9d20a
hex316f459f2a

212320231210 has 64 divisors (see below), whose sum is σ = 387132286464. Its totient is φ = 83836108800.

The previous prime is 212320231183. The next prime is 212320231213. The reversal of 212320231210 is 12132023212.

It is not an unprimeable number, because it can be changed into a prime (212320231213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 257982859 + ... + 257983681.

It is an arithmetic number, because the mean of its divisors is an integer number (6048941976).

Almost surely, 2212320231210 is an apocalyptic number.

212320231210 is a deficient number, since it is larger than the sum of its proper divisors (174812055254).

212320231210 is a wasteful number, since it uses less digits than its factorization.

212320231210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1879.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 212320231210 its reverse (12132023212), we get a palindrome (224452254422).

The spelling of 212320231210 in words is "two hundred twelve billion, three hundred twenty million, two hundred thirty-one thousand, two hundred ten".

Divisors: 1 2 5 10 167 241 334 482 641 823 835 1205 1282 1646 1670 2410 3205 4115 6410 8230 40247 80494 107047 137441 154481 198343 201235 214094 274882 308962 396686 402470 527543 535235 687205 772405 991715 1055086 1070470 1374410 1544810 1983430 2637715 5275430 25798327 33123281 51596654 66246562 88099681 127137863 128991635 165616405 176199362 254275726 257983270 331232810 440498405 635689315 880996810 1271378630 21232023121 42464046242 106160115605 212320231210