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85266231 = 3109260753
BaseRepresentation
bin1010001010100…
…00111100110111
312221102222021120
411011100330313
5133312004411
612243315023
72053515411
oct505207467
9187388246
1085266231
1144148866
122467ba73
13148853bb
14b4779b1
157744106
hex5150f37

85266231 has 8 divisors (see below), whose sum is σ = 114731760. Its totient is φ = 56322432.

The previous prime is 85266217. The next prime is 85266253. The reversal of 85266231 is 13266258.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85266231 - 25 = 85266199 is a prime.

It is a super-2 number, since 2×852662312 = 14540660297890722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 85266192 and 85266201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85266031) 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, 130050 + ... + 130703.

It is an arithmetic number, because the mean of its divisors is an integer number (14341470).

Almost surely, 285266231 is an apocalyptic number.

85266231 is a deficient number, since it is larger than the sum of its proper divisors (29465529).

85266231 is a wasteful number, since it uses less digits than its factorization.

85266231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260865.

The product of its digits is 17280, while the sum is 33.

The square root of 85266231 is about 9233.9715724059. The cubic root of 85266231 is about 440.1415367666.

The spelling of 85266231 in words is "eighty-five million, two hundred sixty-six thousand, two hundred thirty-one".

Divisors: 1 3 109 327 260753 782259 28422077 85266231