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85026385 = 573281829
BaseRepresentation
bin1010001000101…
…10011001010001
312220222210021101
411010112121101
5133231321020
612234224401
72051466223
oct504263121
9186883241
1085026385
1143aa4644
1224585101
1314800192
14b414413
1576e800a
hex5116651

85026385 has 16 divisors (see below), whose sum is σ = 103922640. Its totient is φ = 66769920.

The previous prime is 85026371. The next prime is 85026391. The reversal of 85026385 is 58362058.

It can be written as a sum of positive squares in 8 ways, for example, as 698896 + 84327489 = 836^2 + 9183^2 .

It is not a de Polignac number, because 85026385 - 25 = 85026353 is a prime.

It is a super-2 number, since 2×850263852 = 14458972292336450, which contains 22 as substring.

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, 102151 + ... + 102979.

It is an arithmetic number, because the mean of its divisors is an integer number (6495165).

Almost surely, 285026385 is an apocalyptic number.

It is an amenable number.

85026385 is a deficient number, since it is larger than the sum of its proper divisors (18896255).

85026385 is a wasteful number, since it uses less digits than its factorization.

85026385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1188.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 85026385 is about 9220.9752737983. The cubic root of 85026385 is about 439.7284567646.

The spelling of 85026385 in words is "eighty-five million, twenty-six thousand, three hundred eighty-five".

Divisors: 1 5 73 281 365 829 1405 4145 20513 60517 102565 232949 302585 1164745 17005277 85026385