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12103132020 = 2235729993689
BaseRepresentation
bin10110100010110011…
…10010001101110100
31011020111011210212220
423101121302031310
5144241400211040
65320552042340
7605632632120
oct132131621564
934214153786
1012103132020
1151509a2251
1224193933b0
1311ab633aa5
1482b5c6580
154ac8432d0
hex2d1672374

12103132020 has 96 divisors (see below), whose sum is σ = 40065580800. Its totient is φ = 2671033344.

The previous prime is 12103132007. The next prime is 12103132207. The reversal of 12103132020 is 2023130121.

12103132020 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 (15).

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 31 ways as a sum of consecutive naturals, for example, 484665 + ... + 509024.

It is an arithmetic number, because the mean of its divisors is an integer number (417349800).

Almost surely, 212103132020 is an apocalyptic number.

12103132020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12103132020 is an abundant number, since it is smaller than the sum of its proper divisors (27962448780).

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

12103132020 is a wasteful number, since it uses less digits than its factorization.

12103132020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993737 (or 993735 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12103132020 its reverse (2023130121), we get a palindrome (14126262141).

The spelling of 12103132020 in words is "twelve billion, one hundred three million, one hundred thirty-two thousand, twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 29 30 35 42 58 60 70 84 87 105 116 140 145 174 203 210 290 348 406 420 435 580 609 812 870 1015 1218 1740 2030 2436 3045 4060 6090 12180 993689 1987378 2981067 3974756 4968445 5962134 6955823 9936890 11924268 13911646 14905335 19873780 20867469 27823292 28816981 29810670 34779115 41734938 57633962 59621340 69558230 83469876 86450943 104337345 115267924 139116460 144084905 172901886 201718867 208674690 288169810 345803772 403437734 417349380 432254715 576339620 605156601 806875468 864509430 1008594335 1210313202 1729018860 2017188670 2420626404 3025783005 4034377340 6051566010 12103132020