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1224108 = 223237919
BaseRepresentation
bin100101010110110101100
32022012011100
410222312230
5303132413
642123100
713255554
oct4526654
92265140
101224108
11766766
124b0490
1333b232
1423c164
15192a73
hex12adac

1224108 has 36 divisors (see below), whose sum is σ = 3181360. Its totient is φ = 396576.

The previous prime is 1224089. The next prime is 1224109. The reversal of 1224108 is 8014221.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1224109) 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, 873 + ... + 1791.

21224108 is an apocalyptic number.

1224108 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1224108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1590680).

1224108 is an abundant number, since it is smaller than the sum of its proper divisors (1957252).

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

1224108 is a wasteful number, since it uses less digits than its factorization.

1224108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966 (or 961 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1224108 is about 1106.3941431515. The cubic root of 1224108 is about 106.9727708977.

Adding to 1224108 its reverse (8014221), we get a palindrome (9238329).

The spelling of 1224108 in words is "one million, two hundred twenty-four thousand, one hundred eight".

Divisors: 1 2 3 4 6 9 12 18 36 37 74 111 148 222 333 444 666 919 1332 1838 2757 3676 5514 8271 11028 16542 33084 34003 68006 102009 136012 204018 306027 408036 612054 1224108