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12101208 = 233772031
BaseRepresentation
bin101110001010…
…011001011000
3211202210201220
4232022121120
511044214313
61111212040
7204600330
oct56123130
924683656
1012101208
1169158a9
124077020
1326790a2
1418700c0
1510e0823
hexb8a658

12101208 has 32 divisors (see below), whose sum is σ = 34575360. Its totient is φ = 3457440.

The previous prime is 12101179. The next prime is 12101227. The reversal of 12101208 is 80210121.

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 7 ways as a sum of consecutive naturals, for example, 35848 + ... + 36183.

It is an arithmetic number, because the mean of its divisors is an integer number (1080480).

Almost surely, 212101208 is an apocalyptic number.

It is an amenable number.

12101208 is an abundant number, since it is smaller than the sum of its proper divisors (22474152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12101208 is a wasteful number, since it uses less digits than its factorization.

12101208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72047 (or 72043 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 12101208 is about 3478.6790596432. The cubic root of 12101208 is about 229.5846821315.

Adding to 12101208 its reverse (80210121), we get a palindrome (92311329).

The spelling of 12101208 in words is "twelve million, one hundred one thousand, two hundred eight".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 72031 144062 216093 288124 432186 504217 576248 864372 1008434 1512651 1728744 2016868 3025302 4033736 6050604 12101208