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85852810 = 2570912109
BaseRepresentation
bin1010001111000…
…00001010001010
312222112202220201
411013200022022
5133434242220
612304042414
72061510511
oct507401212
9188482821
1085852810
114450953a
122490340a
1314a2c3a4
14b58b678
15780cd0a
hex51e028a

85852810 has 16 divisors (see below), whose sum is σ = 154765800. Its totient is φ = 34289856.

The previous prime is 85852801. The next prime is 85852817. The reversal of 85852810 is 1825858.

It can be written as a sum of positive squares in 4 ways, for example, as 78163281 + 7689529 = 8841^2 + 2773^2 .

It is a super-2 number, since 2×858528102 = 14741409969792200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85852810.

It is not an unprimeable number, because it can be changed into a prime (85852817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1036 + ... + 13144.

Almost surely, 285852810 is an apocalyptic number.

85852810 is a deficient number, since it is larger than the sum of its proper divisors (68912990).

85852810 is a wasteful number, since it uses less digits than its factorization.

85852810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12825.

The product of its (nonzero) digits is 25600, while the sum is 37.

The square root of 85852810 is about 9265.6791440239. The cubic root of 85852810 is about 441.1485317488.

The spelling of 85852810 in words is "eighty-five million, eight hundred fifty-two thousand, eight hundred ten".

Divisors: 1 2 5 10 709 1418 3545 7090 12109 24218 60545 121090 8585281 17170562 42926405 85852810