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84805061 = 1117479649
BaseRepresentation
bin1010000111000…
…00010111000101
312220120112200012
411003200113011
5133202230221
612225400005
72046555035
oct503402705
9186515605
1084805061
1143963330
1224499005
1314753513
14b3978c5
1576a265b
hex50e05c5

84805061 has 16 divisors (see below), whose sum is σ = 100051200. Its totient is φ = 71009280.

The previous prime is 84805051. The next prime is 84805069. The reversal of 84805061 is 16050848.

It is a cyclic number.

It is not a de Polignac number, because 84805061 - 26 = 84804997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84805069) 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 15 ways as a sum of consecutive naturals, for example, 3965 + ... + 13613.

It is an arithmetic number, because the mean of its divisors is an integer number (6253200).

Almost surely, 284805061 is an apocalyptic number.

It is an amenable number.

84805061 is a deficient number, since it is larger than the sum of its proper divisors (15246139).

84805061 is a wasteful number, since it uses less digits than its factorization.

84805061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9724.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 84805061 is about 9208.9663372172. The cubic root of 84805061 is about 439.3465869608.

The spelling of 84805061 in words is "eighty-four million, eight hundred five thousand, sixty-one".

Divisors: 1 11 17 47 187 517 799 8789 9649 106139 164033 453503 1804363 4988533 7709551 84805061