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85852921 = 7111114973
BaseRepresentation
bin1010001111000…
…00001011111001
312222112210001211
411013200023321
5133434243141
612304043121
72061511030
oct507401371
9188483054
1085852921
1144509630
12249034a1
1314a2c45b
14b58b717
15780cd81
hex51e02f9

85852921 has 8 divisors (see below), whose sum is σ = 107037504. Its totient is φ = 66898320.

The previous prime is 85852903. The next prime is 85852939. The reversal of 85852921 is 12925858.

It is an interprime number because it is at equal distance from previous prime (85852903) and next prime (85852939).

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 85852921 - 223 = 77464313 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (85852961) 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, 557410 + ... + 557563.

It is an arithmetic number, because the mean of its divisors is an integer number (13379688).

Almost surely, 285852921 is an apocalyptic number.

It is an amenable number.

85852921 is a deficient number, since it is larger than the sum of its proper divisors (21184583).

85852921 is a wasteful number, since it uses less digits than its factorization.

85852921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114991.

The product of its digits is 57600, while the sum is 40.

The square root of 85852921 is about 9265.6851338689. The cubic root of 85852921 is about 441.1487218706.

The spelling of 85852921 in words is "eighty-five million, eight hundred fifty-two thousand, nine hundred twenty-one".

Divisors: 1 7 11 77 1114973 7804811 12264703 85852921