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66884108 = 2216721027
BaseRepresentation
bin1111111100100…
…1001000001100
311122212001202012
43333021020030
5114110242413
610345320352
71441335254
oct377111014
9148761665
1066884108
1134833025
121a4960b8
1310b1a4c5
148c50964
155d127a8
hex3fc920c

66884108 has 6 divisors (see below), whose sum is σ = 117047196. Its totient is φ = 33442052.

The previous prime is 66884101. The next prime is 66884113. The reversal of 66884108 is 80148866.

66884108 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (66884101) by changing a digit.

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 as a sum of consecutive naturals, namely, 8360510 + ... + 8360517.

It is an arithmetic number, because the mean of its divisors is an integer number (19507866).

Almost surely, 266884108 is an apocalyptic number.

It is an amenable number.

66884108 is a deficient number, since it is larger than the sum of its proper divisors (50163088).

66884108 is a wasteful number, since it uses less digits than its factorization.

66884108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16721031 (or 16721029 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 66884108 is about 8178.2704773075. The cubic root of 66884108 is about 405.9204953237.

The spelling of 66884108 in words is "sixty-six million, eight hundred eighty-four thousand, one hundred eight".

Divisors: 1 2 4 16721027 33442054 66884108