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12150825 = 352162011
BaseRepresentation
bin101110010110…
…100000101001
3211212022210120
4232112200221
511102311300
61112233453
7205165101
oct56264051
924768716
1012150825
11694a105
12409b889
13269584b
141884201
1511003a0
hexb96829

12150825 has 12 divisors (see below), whose sum is σ = 20089488. Its totient is φ = 6480400.

The previous prime is 12150799. The next prime is 12150829. The reversal of 12150825 is 52805121.

It is not a de Polignac number, because 12150825 - 28 = 12150569 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 12150795 and 12150804.

It is not an unprimeable number, because it can be changed into a prime (12150829) 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 11 ways as a sum of consecutive naturals, for example, 80931 + ... + 81080.

It is an arithmetic number, because the mean of its divisors is an integer number (1674124).

Almost surely, 212150825 is an apocalyptic number.

12150825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12150825 is a deficient number, since it is larger than the sum of its proper divisors (7938663).

12150825 is a wasteful number, since it uses less digits than its factorization.

12150825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162024 (or 162019 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 12150825 is about 3485.8033507357. The cubic root of 12150825 is about 229.8980329360.

Adding to 12150825 its reverse (52805121), we get a palindrome (64955946).

The spelling of 12150825 in words is "twelve million, one hundred fifty thousand, eight hundred twenty-five".

Divisors: 1 3 5 15 25 75 162011 486033 810055 2430165 4050275 12150825