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12798285 = 354571867
BaseRepresentation
bin110000110100…
…100101001101
3220002012221120
4300310211031
511234021120
61134151153
7213532533
oct60644515
926065846
1012798285
1172515a5
1243524b9
132861466
1419b2153
1511cc140
hexc3494d

12798285 has 16 divisors (see below), whose sum is σ = 20533056. Its totient is φ = 6807168.

The previous prime is 12798283. The next prime is 12798293. The reversal of 12798285 is 58289721.

It is not a de Polignac number, because 12798285 - 21 = 12798283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12798283) by changing a digit.

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, 5922 + ... + 7788.

It is an arithmetic number, because the mean of its divisors is an integer number (1283316).

Almost surely, 212798285 is an apocalyptic number.

12798285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12798285 is a deficient number, since it is larger than the sum of its proper divisors (7734771).

12798285 is a wasteful number, since it uses less digits than its factorization.

12798285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2332.

The product of its digits is 80640, while the sum is 42.

The square root of 12798285 is about 3577.4690774345. The cubic root of 12798285 is about 233.9109713187.

The spelling of 12798285 in words is "twelve million, seven hundred ninety-eight thousand, two hundred eighty-five".

Divisors: 1 3 5 15 457 1371 1867 2285 5601 6855 9335 28005 853219 2559657 4266095 12798285