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84355925 = 5229307379
BaseRepresentation
bin1010000011100…
…10101101010101
312212201201120112
411001302231111
5133043342200
612212012405
72043004433
oct501625525
9185651515
1084355925
1143686945
1224301105
1314626c64
14b2bbd53
157614535
hex5072b55

84355925 has 24 divisors (see below), whose sum is σ = 108847200. Its totient is φ = 64774080.

The previous prime is 84355897. The next prime is 84355933. The reversal of 84355925 is 52955348.

It is a de Polignac number, because none of the positive numbers 2k-84355925 is a prime.

Its product of digits (216000) is a multiple of the sum of its prime divisors (720).

It is a congruent number.

It is an unprimeable number.

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, 222386 + ... + 222764.

It is an arithmetic number, because the mean of its divisors is an integer number (4535300).

Almost surely, 284355925 is an apocalyptic number.

It is an amenable number.

84355925 is a deficient number, since it is larger than the sum of its proper divisors (24491275).

84355925 is a wasteful number, since it uses less digits than its factorization.

84355925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725 (or 720 counting only the distinct ones).

The product of its digits is 216000, while the sum is 41.

The square root of 84355925 is about 9184.5481652610. The cubic root of 84355925 is about 438.5696060107.

The spelling of 84355925 in words is "eighty-four million, three hundred fifty-five thousand, nine hundred twenty-five".

Divisors: 1 5 25 29 145 307 379 725 1535 1895 7675 8903 9475 10991 44515 54955 116353 222575 274775 581765 2908825 3374237 16871185 84355925