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86788470 = 2352892949
BaseRepresentation
bin1010010110001…
…00100101110110
320001022022101210
411023010211312
5134204212340
612340102250
72102455416
oct513044566
9201268353
1086788470
1144a9850a
1225094986
1314c99232
14b752646
157945180
hex52c4976

86788470 has 16 divisors (see below), whose sum is σ = 208292400. Its totient is φ = 23143584.

The previous prime is 86788463. The next prime is 86788487. The reversal of 86788470 is 7488768.

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 7 ways as a sum of consecutive naturals, for example, 1446445 + ... + 1446504.

It is an arithmetic number, because the mean of its divisors is an integer number (13018275).

Almost surely, 286788470 is an apocalyptic number.

86788470 is an abundant number, since it is smaller than the sum of its proper divisors (121503930).

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

86788470 is a wasteful number, since it uses less digits than its factorization.

86788470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2892959.

The product of its (nonzero) digits is 602112, while the sum is 48.

The square root of 86788470 is about 9316.0329539993. The cubic root of 86788470 is about 442.7453521407.

The spelling of 86788470 in words is "eighty-six million, seven hundred eighty-eight thousand, four hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 2892949 5785898 8678847 14464745 17357694 28929490 43394235 86788470