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84348385 = 5112952883
BaseRepresentation
bin1010000011100…
…00110111100001
312212201100020021
411001300313201
5133043122020
612211513441
72042643442
oct501606741
9185640207
1084348385
1143681210
12242b8881
13146236b4
14b2b92c9
1576121aa
hex5070de1

84348385 has 16 divisors (see below), whose sum is σ = 114229440. Its totient is φ = 59227840.

The previous prime is 84348367. The next prime is 84348389. The reversal of 84348385 is 58384348.

It is not a de Polignac number, because 84348385 - 221 = 82251233 is a prime.

It is a super-2 number, since 2×843483852 = 14229300104216450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84348389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24847 + ... + 28036.

It is an arithmetic number, because the mean of its divisors is an integer number (7139340).

Almost surely, 284348385 is an apocalyptic number.

It is an amenable number.

84348385 is a deficient number, since it is larger than the sum of its proper divisors (29881055).

84348385 is a wasteful number, since it uses less digits than its factorization.

84348385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52928.

The product of its digits is 368640, while the sum is 43.

The square root of 84348385 is about 9184.1376840725. The cubic root of 84348385 is about 438.5565387075.

The spelling of 84348385 in words is "eighty-four million, three hundred forty-eight thousand, three hundred eighty-five".

Divisors: 1 5 11 29 55 145 319 1595 52883 264415 581713 1533607 2908565 7668035 16869677 84348385