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86127245 = 5291015881
BaseRepresentation
bin1010010001000…
…11001010001101
320000001201100222
411020203022031
5134022032440
612314001125
72064032561
oct510431215
9200051328
1086127245
1144686746
1224a161a5
1314ac7289
14b61d6a1
1578642b5
hex522328d

86127245 has 16 divisors (see below), whose sum is σ = 107993520. Its totient is φ = 65856000.

The previous prime is 86127233. The next prime is 86127257. The reversal of 86127245 is 54272168.

86127245 = 3942 + 3952 + ... + 6832.

It is an interprime number because it is at equal distance from previous prime (86127233) and next prime (86127257).

It can be written as a sum of positive squares in 8 ways, for example, as 14115049 + 72012196 = 3757^2 + 8486^2 .

It is not a de Polignac number, because 86127245 - 216 = 86061709 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 11705 + ... + 17585.

It is an arithmetic number, because the mean of its divisors is an integer number (6749595).

Almost surely, 286127245 is an apocalyptic number.

It is an amenable number.

86127245 is a deficient number, since it is larger than the sum of its proper divisors (21866275).

86127245 is a wasteful number, since it uses less digits than its factorization.

86127245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6016.

The product of its digits is 26880, while the sum is 35.

The square root of 86127245 is about 9280.4765502640. The cubic root of 86127245 is about 441.6180866626.

The spelling of 86127245 in words is "eighty-six million, one hundred twenty-seven thousand, two hundred forty-five".

Divisors: 1 5 29 101 145 505 2929 5881 14645 29405 170549 593981 852745 2969905 17225449 86127245