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85323223 = 431984261
BaseRepresentation
bin1010001010111…
…10110111010111
312221112212110101
411011132313113
5133320320343
612244434531
72054143516
oct505366727
9187485411
1085323223
1144187667
12246a8a47
13148a531b
14b49067d
157755e4d
hex515edd7

85323223 has 4 divisors (see below), whose sum is σ = 87307528. Its totient is φ = 83338920.

The previous prime is 85323197. The next prime is 85323233. The reversal of 85323223 is 32232358.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32232358 = 216116179.

It is a cyclic number.

It is not a de Polignac number, because 85323223 - 221 = 83226071 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85323191 and 85323200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85323233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 992088 + ... + 992173.

It is an arithmetic number, because the mean of its divisors is an integer number (21826882).

Almost surely, 285323223 is an apocalyptic number.

85323223 is a deficient number, since it is larger than the sum of its proper divisors (1984305).

85323223 is a wasteful number, since it uses less digits than its factorization.

85323223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1984304.

The product of its digits is 8640, while the sum is 28.

The square root of 85323223 is about 9237.0570529796. The cubic root of 85323223 is about 440.2395785486.

The spelling of 85323223 in words is "eighty-five million, three hundred twenty-three thousand, two hundred twenty-three".

Divisors: 1 43 1984261 85323223