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323100012220 = 225409353911161
BaseRepresentation
bin1001011001110100100…
…00101110111010111100
31010212222101200020022021
410230322100232322330
520243202100342340
6404232522325524
732225501534626
oct4547220567274
91125871606267
10323100012220
11115031596397
12527516598a4
1324611836cab
14118d1025c16
158610676e4a
hex4b3a42eebc

323100012220 has 48 divisors (see below), whose sum is σ = 680422125600. Its totient is φ = 128876037120.

The previous prime is 323100012211. The next prime is 323100012227. The reversal of 323100012220 is 22210001323.

It is a junction number, because it is equal to n+sod(n) for n = 323100012194 and 323100012203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323100012227) 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, 28943440 + ... + 28954600.

It is an arithmetic number, because the mean of its divisors is an integer number (14175460950).

Almost surely, 2323100012220 is an apocalyptic number.

It is an amenable number.

323100012220 is an abundant number, since it is smaller than the sum of its proper divisors (357322113380).

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

323100012220 is a wasteful number, since it uses less digits than its factorization.

323100012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15118 (or 15116 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 323100012220 its reverse (22210001323), we get a palindrome (345310013543).

The spelling of 323100012220 in words is "three hundred twenty-three billion, one hundred million, twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 409 818 1636 2045 3539 4090 7078 8180 11161 14156 17695 22322 35390 44644 55805 70780 111610 223220 1447451 2894902 4564849 5789804 7237255 9129698 14474510 18259396 22824245 28949020 39498779 45648490 78997558 91296980 157995116 197493895 394987790 789975580 16155000611 32310001222 64620002444 80775003055 161550006110 323100012220