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86944205 = 517260169
BaseRepresentation
bin1010010111010…
…10100111001101
320001121020000202
411023222213031
5134224203310
612343303245
72104004435
oct513524715
9201536022
1086944205
1145094517
122514ab25
131502209a
14b7932c5
1579763a5
hex52ea9cd

86944205 has 12 divisors (see below), whose sum is σ = 110833140. Its totient is φ = 65462784.

The previous prime is 86944159. The next prime is 86944211. The reversal of 86944205 is 50244968.

It can be written as a sum of positive squares in 6 ways, for example, as 25180324 + 61763881 = 5018^2 + 7859^2 .

It is not a de Polignac number, because 86944205 - 214 = 86927821 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28640 + ... + 31529.

It is an arithmetic number, because the mean of its divisors is an integer number (9236095).

Almost surely, 286944205 is an apocalyptic number.

86944205 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

86944205 is a deficient number, since it is larger than the sum of its proper divisors (23888935).

86944205 is a wasteful number, since it uses less digits than its factorization.

86944205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60208 (or 60191 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 86944205 is about 9324.3876474544. The cubic root of 86944205 is about 443.0100176589.

The spelling of 86944205 in words is "eighty-six million, nine hundred forty-four thousand, two hundred five".

Divisors: 1 5 17 85 289 1445 60169 300845 1022873 5114365 17388841 86944205