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86999948 = 22717182773
BaseRepresentation
bin1010010111110…
…00001110001100
320001201001111022
411023320032030
5134232444243
612344413312
72104326110
oct513701614
9201631438
1086999948
1145122392
1225177238
1315041579
14b7a9740
157987b68
hex52f838c

86999948 has 24 divisors (see below), whose sum is σ = 184236192. Its totient is φ = 35092224.

The previous prime is 86999947. The next prime is 86999951. The reversal of 86999948 is 84999968.

It is not an unprimeable number, because it can be changed into a prime (86999947) 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 7 ways as a sum of consecutive naturals, for example, 90911 + ... + 91862.

It is an arithmetic number, because the mean of its divisors is an integer number (7676508).

Almost surely, 286999948 is an apocalyptic number.

It is an amenable number.

86999948 is an abundant number, since it is smaller than the sum of its proper divisors (97236244).

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

86999948 is a wasteful number, since it uses less digits than its factorization.

86999948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182801 (or 182799 counting only the distinct ones).

The product of its digits is 10077696, while the sum is 62.

The square root of 86999948 is about 9327.3762655958. The cubic root of 86999948 is about 443.1046738879.

The spelling of 86999948 in words is "eighty-six million, nine hundred ninety-nine thousand, nine hundred forty-eight".

Divisors: 1 2 4 7 14 17 28 34 68 119 238 476 182773 365546 731092 1279411 2558822 3107141 5117644 6214282 12428564 21749987 43499974 86999948