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2213010020 = 2251317312521
BaseRepresentation
bin1000001111100111…
…1101101001100100
312201020011120001002
42003321331221210
514013012310040
61003332252432
7105561163154
oct20371755144
95636146032
102213010020
11a36206201
12519171118
132936382b0
1416dca6764
15ce43ba15
hex83e7da64

2213010020 has 144 divisors (see below), whose sum is σ = 5486174064. Its totient is φ = 742809600.

The previous prime is 2213010017. The next prime is 2213010031. The reversal of 2213010020 is 200103122.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 113720896 + 2099289124 = 10664^2 + 45818^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2213009983 and 2213010010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4247360 + ... + 4247880.

It is an arithmetic number, because the mean of its divisors is an integer number (38098431).

Almost surely, 22213010020 is an apocalyptic number.

2213010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2213010020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2743087032).

2213010020 is an abundant number, since it is smaller than the sum of its proper divisors (3273164044).

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

2213010020 is a wasteful number, since it uses less digits than its factorization.

2213010020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622 (or 589 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2213010020 is about 47042.6404446009. The cubic root of 2213010020 is about 1303.1501552613.

Adding to 2213010020 its reverse (200103122), we get a palindrome (2413113142).

The spelling of 2213010020 in words is "two billion, two hundred thirteen million, ten thousand, twenty".

Divisors: 1 2 4 5 10 13 17 20 26 31 34 52 62 65 68 85 124 130 155 170 221 260 310 340 403 442 521 527 620 806 884 961 1042 1054 1105 1612 1922 2015 2084 2108 2210 2605 2635 3844 4030 4420 4805 5210 5270 6773 6851 8060 8857 9610 10420 10540 12493 13546 13702 16151 16337 17714 19220 24986 27092 27404 32302 32674 33865 34255 35428 44285 49972 62465 64604 65348 67730 68510 80755 81685 88570 115141 124930 135460 137020 161510 163370 177140 209963 212381 230282 249860 274567 323020 326740 419926 424762 460564 500681 549134 575705 839852 849524 1001362 1049815 1061905 1098268 1151410 1372835 2002724 2099630 2123810 2302820 2503405 2745670 3569371 4199260 4247620 5006810 5491340 6508853 7138742 8511577 10013620 13017706 14277484 17023154 17846855 26035412 32544265 34046308 35693710 42557885 65088530 71387420 85115770 110650501 130177060 170231540 221301002 442602004 553252505 1106505010 2213010020