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85949933 = 225138183
BaseRepresentation
bin1010001111101…
…11110111101101
312222201201010212
411013313313231
5134000344213
612310112205
72062363616
oct507676755
9188651125
1085949933
1144575503
122494b665
1314a64664
14b5b4c0d
15782b9a8
hex51f7ded

85949933 has 4 divisors (see below), whose sum is σ = 85990368. Its totient is φ = 85909500.

The previous prime is 85949923. The next prime is 85949953. The reversal of 85949933 is 33994958.

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.

It is a cyclic number.

It is not a de Polignac number, because 85949933 - 212 = 85945837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85949923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16841 + ... + 21342.

It is an arithmetic number, because the mean of its divisors is an integer number (21497592).

Almost surely, 285949933 is an apocalyptic number.

It is an amenable number.

85949933 is a deficient number, since it is larger than the sum of its proper divisors (40435).

85949933 is a wasteful number, since it uses less digits than its factorization.

85949933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40434.

The product of its digits is 1049760, while the sum is 50.

The square root of 85949933 is about 9270.9186707683. The cubic root of 85949933 is about 441.3148222572.

The spelling of 85949933 in words is "eighty-five million, nine hundred forty-nine thousand, nine hundred thirty-three".

Divisors: 1 2251 38183 85949933