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213303220032 = 26371217130409
BaseRepresentation
bin1100011010100111011…
…1001101011101000000
3202101120110122021122110
43012221313031131000
511443321111020112
6241553512135320
721260565312030
oct3065167153500
9671513567573
10213303220032
118250911a321
123540a997540
13171644784c6
14a476c1b8c0
15583631e13c
hex31a9dcd740

213303220032 has 112 divisors (see below), whose sum is σ = 645523240320. Its totient is φ = 60893233152.

The previous prime is 213303220019. The next prime is 213303220037. The reversal of 213303220032 is 230022303312.

213303220032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 213303219990 and 213303220008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213303220037) 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 15 ways as a sum of consecutive naturals, for example, 1570444 + ... + 1700852.

It is an arithmetic number, because the mean of its divisors is an integer number (5763600360).

Almost surely, 2213303220032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213303220032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322761620160).

213303220032 is an abundant number, since it is smaller than the sum of its proper divisors (432220020288).

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

213303220032 is a wasteful number, since it uses less digits than its factorization.

213303220032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131648 (or 131638 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 213303220032 its reverse (230022303312), we get a palindrome (443325523344).

The spelling of 213303220032 in words is "two hundred thirteen billion, three hundred three million, two hundred twenty thousand, thirty-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 168 192 224 336 448 672 1217 1344 2434 3651 4868 7302 8519 9736 14604 17038 19472 25557 29208 34076 38944 51114 58416 68152 77888 102228 116832 130409 136304 204456 233664 260818 272608 391227 408912 521636 545216 782454 817824 912863 1043272 1564908 1635648 1825726 2086544 2738589 3129816 3651452 4173088 5477178 6259632 7302904 8346176 10954356 12519264 14605808 21908712 25038528 29211616 43817424 58423232 87634848 158707753 175269696 317415506 476123259 634831012 952246518 1110954271 1269662024 1904493036 2221908542 2539324048 3332862813 3808986072 4443817084 5078648096 6665725626 7617972144 8887634168 10157296192 13331451252 15235944288 17775268336 26662902504 30471888576 35550536672 53325805008 71101073344 106651610016 213303220032