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320313421212 = 2236110131113931
BaseRepresentation
bin1001010100101000010…
…10101110110110011100
31010121210012012202001220
410222110022232312130
520222000213434322
6403052220133340
732066444104611
oct4522412566634
91117705182056
10320313421212
11113931637314
12520b4397250
1324289423185
1411708cd2508
1584eabda55c
hex4a942aed9c

320313421212 has 96 divisors (see below), whose sum is σ = 769693736448. Its totient is φ = 103639200000.

The previous prime is 320313421199. The next prime is 320313421213. The reversal of 320313421212 is 212124313023.

It is a super-2 number, since 2×3203134212122 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320313421213) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 22985887 + ... + 22999817.

It is an arithmetic number, because the mean of its divisors is an integer number (8017643088).

Almost surely, 2320313421212 is an apocalyptic number.

It is an amenable number.

320313421212 is an abundant number, since it is smaller than the sum of its proper divisors (449380315236).

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

320313421212 is a wasteful number, since it uses less digits than its factorization.

320313421212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14411 (or 14409 counting only the distinct ones).

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

Adding to 320313421212 its reverse (212124313023), we get a palindrome (532437734235).

The spelling of 320313421212 in words is "three hundred twenty billion, three hundred thirteen million, four hundred twenty-one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 61 101 122 183 202 244 303 311 366 404 606 622 732 933 1212 1244 1866 3732 6161 12322 13931 18483 18971 24644 27862 31411 36966 37942 41793 55724 56913 62822 73932 75884 83586 94233 113826 125644 167172 188466 227652 376932 849791 1407031 1699582 1916071 2549373 2814062 3399164 3832142 4221093 4332541 5098746 5628124 5748213 7664284 8442186 8665082 10197492 11496426 12997623 16884372 17330164 22992852 25995246 51990492 85828891 171657782 257486673 264285001 343315564 437586641 514973346 528570002 792855003 875173282 1029946692 1057140004 1312759923 1585710006 1750346564 2625519846 3171420012 5251039692 26692785101 53385570202 80078355303 106771140404 160156710606 320313421212