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86130915 = 3513441697
BaseRepresentation
bin1010010001001…
…00000011100011
320000001220101220
411020210003203
5134022142130
612314030123
72064046353
oct510440343
9200056356
1086130915
1144689482
1224a18343
1314ac8b50
14b620b63
157865410
hex52240e3

86130915 has 16 divisors (see below), whose sum is σ = 148410528. Its totient is φ = 42402816.

The previous prime is 86130871. The next prime is 86130923. The reversal of 86130915 is 51903168.

It is not a de Polignac number, because 86130915 - 27 = 86130787 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220654 + ... + 221043.

It is an arithmetic number, because the mean of its divisors is an integer number (9275658).

Almost surely, 286130915 is an apocalyptic number.

86130915 is a deficient number, since it is larger than the sum of its proper divisors (62279613).

86130915 is a wasteful number, since it uses less digits than its factorization.

86130915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441718.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 86130915 is about 9280.6742750729. The cubic root of 86130915 is about 441.6243592243.

The spelling of 86130915 in words is "eighty-six million, one hundred thirty thousand, nine hundred fifteen".

Divisors: 1 3 5 13 15 39 65 195 441697 1325091 2208485 5742061 6625455 17226183 28710305 86130915