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85507873 = 1110772649
BaseRepresentation
bin1010001100010…
…11111100100001
312221220020202021
411012023330201
5133342222443
612252421441
72055543043
oct506137441
9187806667
1085507873
11442a3370
1224777881
131493b399
14b4dba93
1577909ed
hex518bf21

85507873 has 8 divisors (see below), whose sum is σ = 94154400. Its totient is φ = 77006880.

The previous prime is 85507871. The next prime is 85507883. The reversal of 85507873 is 37870558.

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 85507873 - 21 = 85507871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85507871) 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, 35148 + ... + 37501.

It is an arithmetic number, because the mean of its divisors is an integer number (11769300).

Almost surely, 285507873 is an apocalyptic number.

It is an amenable number.

85507873 is a deficient number, since it is larger than the sum of its proper divisors (8646527).

85507873 is a wasteful number, since it uses less digits than its factorization.

85507873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72767.

The product of its (nonzero) digits is 235200, while the sum is 43.

The square root of 85507873 is about 9247.0467177364. The cubic root of 85507873 is about 440.5569273509.

The spelling of 85507873 in words is "eighty-five million, five hundred seven thousand, eight hundred seventy-three".

Divisors: 1 11 107 1177 72649 799139 7773443 85507873