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86144070 = 2352871469
BaseRepresentation
bin1010010001001…
…11010001000110
320000002120110010
411020213101012
5134023102240
612314211050
72064132615
oct510472106
9200076403
1086144070
1144698351
1224a23a86
1314b01b2c
14b62587c
157869280
hex5227446

86144070 has 16 divisors (see below), whose sum is σ = 206745840. Its totient is φ = 22971744.

The previous prime is 86144063. The next prime is 86144077. The reversal of 86144070 is 7044168.

It is an interprime number because it is at equal distance from previous prime (86144063) and next prime (86144077).

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2871469 = 86144070 / (8 + 6 + 1 + 4 + 4 + 0 + 7 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86144077) 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 7 ways as a sum of consecutive naturals, for example, 1435705 + ... + 1435764.

It is an arithmetic number, because the mean of its divisors is an integer number (12921615).

Almost surely, 286144070 is an apocalyptic number.

86144070 is an abundant number, since it is smaller than the sum of its proper divisors (120601770).

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

86144070 is a wasteful number, since it uses less digits than its factorization.

86144070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2871479.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 86144070 is about 9281.3829788453. The cubic root of 86144070 is about 441.6468415610.

The spelling of 86144070 in words is "eighty-six million, one hundred forty-four thousand, seventy".

Divisors: 1 2 3 5 6 10 15 30 2871469 5742938 8614407 14357345 17228814 28714690 43072035 86144070