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86655668 = 22111969447
BaseRepresentation
bin1010010101001…
…00001010110100
320001001120020012
411022210022310
5134140440133
612333155352
72101363301
oct512441264
9201046205
1086655668
1144a07760
122502bb58
1314c50958
14b71a0a8
15791ab48
hex52a42b4

86655668 has 12 divisors (see below), whose sum is σ = 165433632. Its totient is φ = 39388920.

The previous prime is 86655659. The next prime is 86655671.

86655668 is nontrivially palindromic in base 10.

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 3 ways as a sum of consecutive naturals, for example, 984680 + ... + 984767.

It is an arithmetic number, because the mean of its divisors is an integer number (13786136).

Almost surely, 286655668 is an apocalyptic number.

It is an amenable number.

86655668 is a deficient number, since it is larger than the sum of its proper divisors (78777964).

86655668 is a wasteful number, since it uses less digits than its factorization.

86655668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1969462 (or 1969460 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 50.

The square root of 86655668 is about 9308.9026206100. The cubic root of 86655668 is about 442.5194101309.

The spelling of 86655668 in words is "eighty-six million, six hundred fifty-five thousand, six hundred sixty-eight".

Divisors: 1 2 4 11 22 44 1969447 3938894 7877788 21663917 43327834 86655668