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12443010140 = 2251185965843
BaseRepresentation
bin10111001011010100…
…10100010001011100
31012010011201102000102
423211222110101130
5200440402311030
65414412520232
7620230561331
oct134552242134
935104642012
1012443010140
115305833760
1224b3180078
131233b84ac2
148607ba988
154cc5ccc45
hex2e5a9445c

12443010140 has 48 divisors (see below), whose sum is σ = 28539423360. Its totient is φ = 4519394880.

The previous prime is 12443010133. The next prime is 12443010163. The reversal of 12443010140 is 4101034421.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156059 + ... + 221901.

It is an arithmetic number, because the mean of its divisors is an integer number (594571320).

Almost surely, 212443010140 is an apocalyptic number.

12443010140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12443010140 is an abundant number, since it is smaller than the sum of its proper divisors (16096413220).

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

12443010140 is a wasteful number, since it uses less digits than its factorization.

12443010140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66722 (or 66720 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12443010140 its reverse (4101034421), we get a palindrome (16544044561).

The spelling of 12443010140 in words is "twelve billion, four hundred forty-three million, ten thousand, one hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 859 1718 3436 4295 8590 9449 17180 18898 37796 47245 65843 94490 131686 188980 263372 329215 658430 724273 1316860 1448546 2897092 3621365 7242730 14485460 56559137 113118274 226236548 282795685 565591370 622150507 1131182740 1244301014 2488602028 3110752535 6221505070 12443010140