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16663108 = 2271154101
BaseRepresentation
bin111111100100…
…001001000100
31011100120111011
4333210021010
513231204413
61353052004
7261430330
oct77441104
934316434
1016663108
119451270
1256b7004
1335b5637
1422da7c0
1516e233d
hexfe4244

16663108 has 24 divisors (see below), whose sum is σ = 36356544. Its totient is φ = 6492000.

The previous prime is 16663103. The next prime is 16663121. The reversal of 16663108 is 80136661.

It is a self number, because there is not a number n which added to its sum of digits gives 16663108.

It is not an unprimeable number, because it can be changed into a prime (16663103) 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 7 ways as a sum of consecutive naturals, for example, 26743 + ... + 27358.

It is an arithmetic number, because the mean of its divisors is an integer number (1514856).

Almost surely, 216663108 is an apocalyptic number.

It is an amenable number.

16663108 is an abundant number, since it is smaller than the sum of its proper divisors (19693436).

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

16663108 is a wasteful number, since it uses less digits than its factorization.

16663108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54123 (or 54121 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 16663108 is about 4082.0470354958. The cubic root of 16663108 is about 255.4182959049.

Adding to 16663108 its reverse (80136661), we get a palindrome (96799769).

It can be divided in two parts, 1666 and 3108, that added together give a palindrome (4774).

The spelling of 16663108 in words is "sixteen million, six hundred sixty-three thousand, one hundred eight".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 54101 108202 216404 378707 595111 757414 1190222 1514828 2380444 4165777 8331554 16663108