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853012317 = 3284337439
BaseRepresentation
bin110010110101111…
…110111101011101
32012110002111220210
4302311332331131
53221332343232
6220351003033
730065325243
oct6265767535
92173074823
10853012317
113a8559863
121b9809479
13107954421
1481408793
154ed495cc
hex32d7ef5d

853012317 has 4 divisors (see below), whose sum is σ = 1137349760. Its totient is φ = 568674876.

The previous prime is 853012297. The next prime is 853012343. The reversal of 853012317 is 713210358.

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 not a de Polignac number, because 853012317 - 216 = 852946781 is a prime.

It is a super-3 number, since 3×8530123173 (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853010317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142168717 + ... + 142168722.

It is an arithmetic number, because the mean of its divisors is an integer number (284337440).

Almost surely, 2853012317 is an apocalyptic number.

It is an amenable number.

853012317 is a deficient number, since it is larger than the sum of its proper divisors (284337443).

853012317 is a wasteful number, since it uses less digits than its factorization.

853012317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284337442.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 853012317 is about 29206.3745952831. The cubic root of 853012317 is about 948.3859266080.

The spelling of 853012317 in words is "eight hundred fifty-three million, twelve thousand, three hundred seventeen".

Divisors: 1 3 284337439 853012317