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13031003100 = 223521792271069
BaseRepresentation
bin11000010001011010…
…10101001111011100
31020122011010112201110
430020231111033130
5203141414044400
65553015342020
7640630461453
oct141055251734
936564115643
1013031003100
115587730555
122638081910
1312c893842b
148b8919b9a
15514027e50
hex308b553dc

13031003100 has 144 divisors (see below), whose sum is σ = 38116310400. Its totient is φ = 3437080320.

The previous prime is 13031003093. The next prime is 13031003113. The reversal of 13031003100 is 130013031.

13031003100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×130310031002 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

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, 12189366 + ... + 12190434.

It is an arithmetic number, because the mean of its divisors is an integer number (264696600).

Almost surely, 213031003100 is an apocalyptic number.

13031003100 is a gapful number since it is divisible by the number (10) 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 13031003100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19058155200).

13031003100 is an abundant number, since it is smaller than the sum of its proper divisors (25085307300).

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

13031003100 is a wasteful number, since it uses less digits than its factorization.

13031003100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492 (or 1485 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 12.

Adding to 13031003100 its reverse (130013031), we get a palindrome (13161016131).

The spelling of 13031003100 in words is "thirteen billion, thirty-one million, three thousand, one hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 50 60 75 100 150 179 227 300 358 454 537 681 716 895 908 1069 1074 1135 1362 1790 2138 2148 2270 2685 2724 3207 3405 3580 4276 4475 4540 5345 5370 5675 6414 6810 8950 10690 10740 11350 12828 13425 13620 16035 17025 17900 21380 22700 26725 26850 32070 34050 40633 53450 53700 64140 68100 80175 81266 106900 121899 160350 162532 191351 203165 242663 243798 320700 382702 406330 485326 487596 574053 609495 727989 765404 812660 956755 970652 1015825 1148106 1213315 1218990 1455978 1913510 2031650 2296212 2426630 2437980 2870265 2911956 3047475 3639945 3827020 4063300 4783775 4853260 5740530 6066575 6094950 7279890 9567550 11481060 12133150 12189900 14351325 14559780 18199725 19135100 24266300 28702650 36399450 43436677 57405300 72798900 86873354 130310031 173746708 217183385 260620062 434366770 521240124 651550155 868733540 1085916925 1303100310 2171833850 2606200620 3257750775 4343667700 6515501550 13031003100