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85225669 = 443192383
BaseRepresentation
bin1010001010001…
…11000011000101
312221100220122021
411011013003011
5133304210134
612242403141
72053256224
oct505070305
9187326567
1085225669
1144120341
12246604b1
131486cab9
14b466cbb
1577370b4
hex51470c5

85225669 has 4 divisors (see below), whose sum is σ = 85418496. Its totient is φ = 85032844.

The previous prime is 85225667. The next prime is 85225739. The reversal of 85225669 is 96652258.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96652258 = 248326129.

It is a cyclic number.

It is not a de Polignac number, because 85225669 - 21 = 85225667 is a prime.

It is a super-2 number, since 2×852256692 = 14526829312995122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85225663) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 95749 + ... + 96634.

It is an arithmetic number, because the mean of its divisors is an integer number (21354624).

Almost surely, 285225669 is an apocalyptic number.

It is an amenable number.

85225669 is a deficient number, since it is larger than the sum of its proper divisors (192827).

85225669 is a wasteful number, since it uses less digits than its factorization.

85225669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192826.

The product of its digits is 259200, while the sum is 43.

The square root of 85225669 is about 9231.7749647617. The cubic root of 85225669 is about 440.0717324510.

The spelling of 85225669 in words is "eighty-five million, two hundred twenty-five thousand, six hundred sixty-nine".

Divisors: 1 443 192383 85225669