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213130331300 = 2252471012571747
BaseRepresentation
bin1100011001111110001…
…1101100010010100100
3202101010102022121220002
43012133203230102210
511442442331100200
6241524414400432
721253365632165
oct3063743542244
9671112277802
10213130331300
118242a574477
1235380b00118
13171376c4393
14a45bc9576c
15582606cbd5
hex319f8ec4a4

213130331300 has 144 divisors (see below), whose sum is σ = 479139833088. Its totient is φ = 82243584000.

The previous prime is 213130331291. The next prime is 213130331303. The reversal of 213130331300 is 3133031312.

213130331300 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (213130331303) 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 47 ways as a sum of consecutive naturals, for example, 121997027 + ... + 121998773.

It is an arithmetic number, because the mean of its divisors is an integer number (3327359952).

Almost surely, 2213130331300 is an apocalyptic number.

213130331300 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 213130331300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239569916544).

213130331300 is an abundant number, since it is smaller than the sum of its proper divisors (266009501788).

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

213130331300 is a wasteful number, since it uses less digits than its factorization.

213130331300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2166 (or 2159 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 213130331300 its reverse (3133031312), we get a palindrome (216263362612).

The spelling of 213130331300 in words is "two hundred thirteen billion, one hundred thirty million, three hundred thirty-one thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 47 50 94 100 101 188 202 235 257 404 470 505 514 940 1010 1028 1175 1285 1747 2020 2350 2525 2570 3494 4700 4747 5050 5140 6425 6988 8735 9494 10100 12079 12850 17470 18988 23735 24158 25700 25957 34940 43675 47470 48316 51914 60395 82109 87350 94940 103828 118675 120790 129785 164218 174700 176447 237350 241580 259570 301975 328436 352894 410545 448979 474700 519140 603950 648925 705788 821090 882235 897958 1207900 1219979 1297850 1642180 1764470 1795916 2052725 2244895 2439958 2595700 3528940 4105450 4411175 4489790 4879916 6099895 8210900 8293009 8822350 8979580 11224475 12199790 16586018 17644700 21102013 22448950 24399580 30499475 33172036 41465045 42204026 44897900 45346879 60998950 82930090 84408052 90693758 105510065 121997900 165860180 181387516 207325225 211020130 226734395 414650450 422040260 453468790 527550325 829300900 906937580 1055100650 1133671975 2110201300 2131303313 2267343950 4262606626 4534687900 8525213252 10656516565 21313033130 42626066260 53282582825 106565165650 213130331300