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12103013500 = 2253186113007
BaseRepresentation
bin10110100010110010…
…10101010001111100
31011020110221210022021
423101121111101330
5144241332413000
65320545325524
7605631626434
oct132131252174
934213853267
1012103013500
1151509211a6
1224193368a4
1311ab5c1b66
1482b5952c4
154ac81d11a
hex2d165547c

12103013500 has 48 divisors (see below), whose sum is σ = 26449218432. Its totient is φ = 4838232000.

The previous prime is 12103013467. The next prime is 12103013543. The reversal of 12103013500 is 531030121.

12103013500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 923997 + ... + 937003.

It is an arithmetic number, because the mean of its divisors is an integer number (551025384).

Almost surely, 212103013500 is an apocalyptic number.

12103013500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12103013500 is an abundant number, since it is smaller than the sum of its proper divisors (14346204932).

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

12103013500 is a wasteful number, since it uses less digits than its factorization.

12103013500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14887 (or 14875 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 16.

Adding to 12103013500 its reverse (531030121), we get a palindrome (12634043621).

The spelling of 12103013500 in words is "twelve billion, one hundred three million, thirteen thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 500 1861 3722 7444 9305 13007 18610 26014 37220 46525 52028 65035 93050 130070 186100 232625 260140 325175 465250 650350 930500 1300700 1625875 3251750 6503500 24206027 48412054 96824108 121030135 242060270 484120540 605150675 1210301350 2420602700 3025753375 6051506750 12103013500