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86676784 = 2419285121
BaseRepresentation
bin1010010101010…
…01010100110000
320001002122012021
411022221110300
5134142124114
612333441224
72101511665
oct512512460
9201078167
1086676784
1144a21607
1225040214
1314c5a44c
14b723a6c
157922024
hex52a9530

86676784 has 20 divisors (see below), whose sum is σ = 176775640. Its totient is φ = 41057280.

The previous prime is 86676781. The next prime is 86676823. The reversal of 86676784 is 48767668.

It is not an unprimeable number, because it can be changed into a prime (86676781) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 142257 + ... + 142864.

It is an arithmetic number, because the mean of its divisors is an integer number (8838782).

Almost surely, 286676784 is an apocalyptic number.

It is an amenable number.

86676784 is an abundant number, since it is smaller than the sum of its proper divisors (90098856).

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

86676784 is a wasteful number, since it uses less digits than its factorization.

86676784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285148 (or 285142 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 52.

The square root of 86676784 is about 9310.0367346214. The cubic root of 86676784 is about 442.5553511574. Note that the first 3 decimals are identical.

It can be divided in two parts, 8667 and 6784, that added together give a palindrome (15451).

The spelling of 86676784 in words is "eighty-six million, six hundred seventy-six thousand, seven hundred eighty-four".

Divisors: 1 2 4 8 16 19 38 76 152 304 285121 570242 1140484 2280968 4561936 5417299 10834598 21669196 43338392 86676784