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84845321 = 1122343709
BaseRepresentation
bin1010000111010…
…10001100001001
312220122120220022
411003222030021
5133210022241
612230310225
72050113311
oct503521411
9186576808
1084845321
1143990600
12244b8375
1314768942
14b3a8441
1576ae54b
hex50ea309

84845321 has 24 divisors (see below), whose sum is σ = 99718080. Its totient is φ = 71961120.

The previous prime is 84845303. The next prime is 84845347. The reversal of 84845321 is 12354848.

It is a de Polignac number, because none of the positive numbers 2k-84845321 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (84841321) 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 23 ways as a sum of consecutive naturals, for example, 119315 + ... + 120023.

It is an arithmetic number, because the mean of its divisors is an integer number (4154920).

Almost surely, 284845321 is an apocalyptic number.

It is an amenable number.

84845321 is a deficient number, since it is larger than the sum of its proper divisors (14872759).

84845321 is a wasteful number, since it uses less digits than its factorization.

84845321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797 (or 786 counting only the distinct ones).

The product of its digits is 30720, while the sum is 35.

The square root of 84845321 is about 9211.1519909293. The cubic root of 84845321 is about 439.4161004822.

The spelling of 84845321 in words is "eighty-four million, eight hundred forty-five thousand, three hundred twenty-one".

Divisors: 1 11 23 43 121 253 473 709 989 2783 5203 7799 10879 16307 30487 85789 119669 179377 335357 701201 1973147 3688927 7713211 84845321