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85702849 = 678291543
BaseRepresentation
bin1010001101110…
…11100011000001
312222021011012121
411012323203001
5133414442344
612300524241
72060314351
oct506734301
9188234177
1085702849
1144416901
1224850681
13149a905b
14b54cb61
1577cd684
hex51bb8c1

85702849 has 8 divisors (see below), whose sum is σ = 87143360. Its totient is φ = 84267216.

The previous prime is 85702829. The next prime is 85702867. The reversal of 85702849 is 94820758.

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

It is a cyclic number.

It is not a de Polignac number, because 85702849 - 211 = 85700801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85702819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54772 + ... + 56314.

It is an arithmetic number, because the mean of its divisors is an integer number (10892920).

Almost surely, 285702849 is an apocalyptic number.

It is an amenable number.

85702849 is a deficient number, since it is larger than the sum of its proper divisors (1440511).

85702849 is a wasteful number, since it uses less digits than its factorization.

85702849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2439.

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 85702849 is about 9257.5833239566. The cubic root of 85702849 is about 440.8915274233.

The spelling of 85702849 in words is "eighty-five million, seven hundred two thousand, eight hundred forty-nine".

Divisors: 1 67 829 1543 55543 103381 1279147 85702849