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12830750 = 253173019
BaseRepresentation
bin110000111100…
…100000011110
3220010212110222
4300330200132
511241041000
61135001342
7214026302
oct60744036
926125428
1012830750
117273a29
124369252
13287317a
1419bdd02
1511d6a85
hexc3c81e

12830750 has 32 divisors (see below), whose sum is σ = 25440480. Its totient is φ = 4828800.

The previous prime is 12830747. The next prime is 12830761. The reversal of 12830750 is 5703821.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2741 + ... + 5759.

It is an arithmetic number, because the mean of its divisors is an integer number (795015).

Almost surely, 212830750 is an apocalyptic number.

12830750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12830750 is a deficient number, since it is larger than the sum of its proper divisors (12609730).

12830750 is a wasteful number, since it uses less digits than its factorization.

12830750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3053 (or 3043 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 12830750 is about 3582.0036292556. The cubic root of 12830750 is about 234.1085891410.

Subtracting from 12830750 its sum of digits (26), we obtain a square (12830724 = 35822).

The spelling of 12830750 in words is "twelve million, eight hundred thirty thousand, seven hundred fifty".

Divisors: 1 2 5 10 17 25 34 50 85 125 170 250 425 850 2125 3019 4250 6038 15095 30190 51323 75475 102646 150950 256615 377375 513230 754750 1283075 2566150 6415375 12830750