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83384913 = 3231378821
BaseRepresentation
bin1001111100001…
…01101001010001
312210220101121010
410332011221101
5132321304123
612135121133
72031521463
oct476055121
9183811533
1083384913
1143083357
1223b131a9
1314376cb1
14b108133
1574c1993
hex4f85a51

83384913 has 16 divisors (see below), whose sum is σ = 116873856. Its totient is φ = 52778880.

The previous prime is 83384887. The next prime is 83384929. The reversal of 83384913 is 31948338.

It is not a de Polignac number, because 83384913 - 218 = 83122769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83384963) 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 15 ways as a sum of consecutive naturals, for example, 5043 + ... + 13863.

It is an arithmetic number, because the mean of its divisors is an integer number (7304616).

Almost surely, 283384913 is an apocalyptic number.

It is an amenable number.

83384913 is a deficient number, since it is larger than the sum of its proper divisors (33488943).

83384913 is a wasteful number, since it uses less digits than its factorization.

83384913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8984.

The product of its digits is 62208, while the sum is 39.

The square root of 83384913 is about 9131.5339894237. The cubic root of 83384913 is about 436.8803317599.

The spelling of 83384913 in words is "eighty-three million, three hundred eighty-four thousand, nine hundred thirteen".

Divisors: 1 3 23 69 137 411 3151 8821 9453 26463 202883 608649 1208477 3625431 27794971 83384913