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84785885 = 51719471117
BaseRepresentation
bin1010000110110…
…11101011011101
312220112120100222
411003123223131
5133201122020
612225131125
72046445112
oct503335335
9186476328
1084785885
114394a988
1224489aa5
1314747882
14b390909
15769bb25
hex50dbadd

84785885 has 32 divisors (see below), whose sum is σ = 115914240. Its totient is φ = 59139072.

The previous prime is 84785863. The next prime is 84785893. The reversal of 84785885 is 58858748.

It is a cyclic number.

It is not a de Polignac number, because 84785885 - 28 = 84785629 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75347 + ... + 76463.

It is an arithmetic number, because the mean of its divisors is an integer number (3622320).

Almost surely, 284785885 is an apocalyptic number.

84785885 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

84785885 is a deficient number, since it is larger than the sum of its proper divisors (31128355).

84785885 is a wasteful number, since it uses less digits than its factorization.

84785885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1205.

The product of its digits is 2867200, while the sum is 53.

The square root of 84785885 is about 9207.9251191569. The cubic root of 84785885 is about 439.3134696557.

The spelling of 84785885 in words is "eighty-four million, seven hundred eighty-five thousand, eight hundred eighty-five".

Divisors: 1 5 17 19 47 85 95 235 323 799 893 1117 1615 3995 4465 5585 15181 18989 21223 52499 75905 94945 106115 262495 360791 892483 997481 1803955 4462415 4987405 16957177 84785885