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54106665 = 3517212183
BaseRepresentation
bin1100111001100…
…1101000101001
310202210220101120
43032121220221
5102322403130
65211405453
71224620244
oct316315051
9122726346
1054106665
11285a6158
1216153889
13b2956a2
14728625b
154b3b910
hex3399a29

54106665 has 16 divisors (see below), whose sum is σ = 91663488. Its totient is φ = 27159296.

The previous prime is 54106639. The next prime is 54106667. The reversal of 54106665 is 56660145.

54106665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 54106665 - 221 = 52009513 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (54106667) 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 in 15 ways as a sum of consecutive naturals, for example, 105837 + ... + 106346.

It is an arithmetic number, because the mean of its divisors is an integer number (5728968).

Almost surely, 254106665 is an apocalyptic number.

It is an amenable number.

54106665 is a deficient number, since it is larger than the sum of its proper divisors (37556823).

54106665 is a wasteful number, since it uses less digits than its factorization.

54106665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212208.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 54106665 is about 7355.7232819078. The cubic root of 54106665 is about 378.2250206911.

The spelling of 54106665 in words is "fifty-four million, one hundred six thousand, six hundred sixty-five".

Divisors: 1 3 5 15 17 51 85 255 212183 636549 1060915 3182745 3607111 10821333 18035555 54106665