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84219741 = 32292231447
BaseRepresentation
bin1010000010100…
…01011101011101
312212110210202200
411001101131131
5133030012431
612205042113
72041566414
oct501213535
9185423680
1084219741
11435a35a1
1224256339
13145a9c88
14b28447b
1575d8ee6
hex505175d

84219741 has 24 divisors (see below), whose sum is σ = 126497280. Its totient is φ = 53930016.

The previous prime is 84219719. The next prime is 84219743. The reversal of 84219741 is 14791248.

It is not a de Polignac number, because 84219741 - 26 = 84219677 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84219696 and 84219705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84219743) 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 23 ways as a sum of consecutive naturals, for example, 57480 + ... + 58926.

It is an arithmetic number, because the mean of its divisors is an integer number (5270720).

Almost surely, 284219741 is an apocalyptic number.

It is an amenable number.

84219741 is a deficient number, since it is larger than the sum of its proper divisors (42277539).

84219741 is a wasteful number, since it uses less digits than its factorization.

84219741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1705 (or 1702 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 84219741 is about 9177.1314145543. The cubic root of 84219741 is about 438.3334703247. Note that the first 3 decimals are identical.

The spelling of 84219741 in words is "eighty-four million, two hundred nineteen thousand, seven hundred forty-one".

Divisors: 1 3 9 29 87 223 261 669 1447 2007 4341 6467 13023 19401 41963 58203 125889 322681 377667 968043 2904129 9357749 28073247 84219741