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84380044 = 22717177269
BaseRepresentation
bin1010000011110…
…00100110001100
312212202221122211
411001320212030
5133100130134
612212320204
72043134650
oct501704614
9185687584
1084380044
11436a2a81
1224313064
1314634c28
14b2c6a60
15761b764
hex507898c

84380044 has 24 divisors (see below), whose sum is σ = 178688160. Its totient is φ = 34035456.

The previous prime is 84380033. The next prime is 84380117. The reversal of 84380044 is 44008348.

It is a junction number, because it is equal to n+sod(n) for n = 84379988 and 84380015.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 88159 + ... + 89110.

It is an arithmetic number, because the mean of its divisors is an integer number (7445340).

Almost surely, 284380044 is an apocalyptic number.

It is an amenable number.

84380044 is an abundant number, since it is smaller than the sum of its proper divisors (94308116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84380044 is a wasteful number, since it uses less digits than its factorization.

84380044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177297 (or 177295 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 84380044 is about 9185.8610919173. The cubic root of 84380044 is about 438.6114005551.

The spelling of 84380044 in words is "eighty-four million, three hundred eighty thousand, forty-four".

Divisors: 1 2 4 7 14 17 28 34 68 119 238 476 177269 354538 709076 1240883 2481766 3013573 4963532 6027146 12054292 21095011 42190022 84380044