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12340521230 = 253139808133
BaseRepresentation
bin10110111111000110…
…10110100100001110
31011212000212102122212
423133203112210032
5200233133134410
65400312110422
7614544462002
oct133743264416
934760772585
1012340521230
1152629a2284
122484995412
13121887c48b
14850d3c702
154c35d5b05
hex2df8d690e

12340521230 has 16 divisors (see below), whose sum is σ = 22929485184. Its totient is φ = 4776975840.

The previous prime is 12340521229. The next prime is 12340521241. The reversal of 12340521230 is 3212504321.

It is a junction number, because it is equal to n+sod(n) for n = 12340521196 and 12340521205.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 19903757 + ... + 19904376.

It is an arithmetic number, because the mean of its divisors is an integer number (1433092824).

Almost surely, 212340521230 is an apocalyptic number.

12340521230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12340521230 is a deficient number, since it is larger than the sum of its proper divisors (10588963954).

12340521230 is a wasteful number, since it uses less digits than its factorization.

12340521230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39808171.

The product of its (nonzero) digits is 1440, while the sum is 23.

The spelling of 12340521230 in words is "twelve billion, three hundred forty million, five hundred twenty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 31 62 155 310 39808133 79616266 199040665 398081330 1234052123 2468104246 6170260615 12340521230