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84905113 = 1732711811
BaseRepresentation
bin1010000111110…
…00110010011001
312220202121220211
411003320302121
5133213430423
612231451121
72050452526
oct503706231
9186677824
1084905113
1143a21517
1224526aa1
1314789c17
14b3c214d
1576c210d
hex50f8c99

84905113 has 8 divisors (see below), whose sum is σ = 85758336. Its totient is φ = 84056400.

The previous prime is 84905111. The next prime is 84905131. The reversal of 84905113 is 31150948.

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

It is a cyclic number.

It is not a de Polignac number, because 84905113 - 21 = 84905111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84905111) 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 7 ways as a sum of consecutive naturals, for example, 45978 + ... + 47788.

It is an arithmetic number, because the mean of its divisors is an integer number (10719792).

Almost surely, 284905113 is an apocalyptic number.

It is an amenable number.

84905113 is a deficient number, since it is larger than the sum of its proper divisors (853223).

84905113 is a wasteful number, since it uses less digits than its factorization.

84905113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2255.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 84905113 is about 9214.3970502687. The cubic root of 84905113 is about 439.5192976798.

The spelling of 84905113 in words is "eighty-four million, nine hundred five thousand, one hundred thirteen".

Divisors: 1 173 271 1811 46883 313303 490781 84905113