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85008885 = 35132331871
BaseRepresentation
bin1010001000100…
…10000111110101
312220221220021020
411010102013311
5133230241020
612234011353
72051364213
oct504220765
9186856236
1085008885
1143a92485
1224576b59
13147c5220
14b40bcb3
1576e2c40
hex51121f5

85008885 has 32 divisors (see below), whose sum is σ = 147184128. Its totient is φ = 41648640.

The previous prime is 85008881. The next prime is 85008899. The reversal of 85008885 is 58880058.

It is not a de Polignac number, because 85008885 - 22 = 85008881 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85008881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44500 + ... + 46370.

It is an arithmetic number, because the mean of its divisors is an integer number (4599504).

Almost surely, 285008885 is an apocalyptic number.

It is an amenable number.

85008885 is a deficient number, since it is larger than the sum of its proper divisors (62175243).

85008885 is a wasteful number, since it uses less digits than its factorization.

85008885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2125.

The product of its (nonzero) digits is 102400, while the sum is 42.

The square root of 85008885 is about 9220.0263014809. The cubic root of 85008885 is about 439.6982866160.

The spelling of 85008885 in words is "eighty-five million, eight thousand, eight hundred eighty-five".

Divisors: 1 3 5 13 15 39 65 195 233 699 1165 1871 3029 3495 5613 9087 9355 15145 24323 28065 45435 72969 121615 364845 435943 1307829 2179715 5667259 6539145 17001777 28336295 85008885