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84168077 = 718166431
BaseRepresentation
bin1010000010001…
…00110110001101
312212101011220012
411001010312031
5133021334302
612204003005
72041262660
oct501046615
9185334805
1084168077
11435687a4
1224230465
131458c5c6
14b26d6d7
1575c8a52
hex5044d8d

84168077 has 8 divisors (see below), whose sum is σ = 96724992. Its totient is φ = 71744400.

The previous prime is 84168067. The next prime is 84168089. The reversal of 84168077 is 77086148.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84168077 - 24 = 84168061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84168067) 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, 31949 + ... + 34482.

It is an arithmetic number, because the mean of its divisors is an integer number (12090624).

Almost surely, 284168077 is an apocalyptic number.

It is an amenable number.

84168077 is a deficient number, since it is larger than the sum of its proper divisors (12556915).

84168077 is a wasteful number, since it uses less digits than its factorization.

84168077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66619.

The product of its (nonzero) digits is 75264, while the sum is 41.

The square root of 84168077 is about 9174.3161598018. The cubic root of 84168077 is about 438.2438211426.

The spelling of 84168077 in words is "eighty-four million, one hundred sixty-eight thousand, seventy-seven".

Divisors: 1 7 181 1267 66431 465017 12024011 84168077