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12842125 = 53711447
BaseRepresentation
bin110000111111…
…010010001101
3220011110002021
4300333102031
511241422000
61135130141
7214104412
oct60772215
926143067
1012842125
11728152a
124373951
1328783ba
1419c4109
1511da11a
hexc3f48d

12842125 has 16 divisors (see below), whose sum is σ = 16263936. Its totient is φ = 10122000.

The previous prime is 12842107. The next prime is 12842173. The reversal of 12842125 is 52124821.

It is not a de Polignac number, because 12842125 - 223 = 4453517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12842125.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8152 + ... + 9598.

It is an arithmetic number, because the mean of its divisors is an integer number (1016496).

Almost surely, 212842125 is an apocalyptic number.

It is an amenable number.

12842125 is a deficient number, since it is larger than the sum of its proper divisors (3421811).

12842125 is an equidigital number, since it uses as much as digits as its factorization.

12842125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533 (or 1523 counting only the distinct ones).

The product of its digits is 1280, while the sum is 25.

The square root of 12842125 is about 3583.5910760018. The cubic root of 12842125 is about 234.1777510798.

Adding to 12842125 its reverse (52124821), we get a palindrome (64966946).

The spelling of 12842125 in words is "twelve million, eight hundred forty-two thousand, one hundred twenty-five".

Divisors: 1 5 25 71 125 355 1447 1775 7235 8875 36175 102737 180875 513685 2568425 12842125