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85764849 = 379361877
BaseRepresentation
bin1010001110010…
…10101011110001
312222101022020220
411013022223301
5133423433344
612302123253
72060663202
oct507125361
9188338226
1085764849
1144459445
1224880529
13149cb341
14b5675a9
1577e1c19
hex51caaf1

85764849 has 8 divisors (see below), whose sum is σ = 115800960. Its totient is φ = 56452656.

The previous prime is 85764839. The next prime is 85764863. The reversal of 85764849 is 94846758.

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

It is not a de Polignac number, because 85764849 - 28 = 85764593 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (85764839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180702 + ... + 181175.

It is an arithmetic number, because the mean of its divisors is an integer number (14475120).

Almost surely, 285764849 is an apocalyptic number.

It is an amenable number.

85764849 is a deficient number, since it is larger than the sum of its proper divisors (30036111).

85764849 is a wasteful number, since it uses less digits than its factorization.

85764849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361959.

The product of its digits is 1935360, while the sum is 51.

The square root of 85764849 is about 9260.9313246563. The cubic root of 85764849 is about 440.9978198277.

The spelling of 85764849 in words is "eighty-five million, seven hundred sixty-four thousand, eight hundred forty-nine".

Divisors: 1 3 79 237 361877 1085631 28588283 85764849