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85502545 = 521138093
BaseRepresentation
bin1010001100010…
…10101001010001
312221212222102221
411012022221101
5133342040140
612252341041
72055521362
oct506125121
9187788387
1085502545
114429a367
1224774781
1314938b2b
14b4d9b69
15778e14a
hex518aa51

85502545 has 8 divisors (see below), whose sum is σ = 102664296. Its totient is φ = 68361216.

The previous prime is 85502513. The next prime is 85502551. The reversal of 85502545 is 54520558.

It can be written as a sum of positive squares in 4 ways, for example, as 641601 + 84860944 = 801^2 + 9212^2 .

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 85502545 - 25 = 85502513 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85502545.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6519 + ... + 14611.

It is an arithmetic number, because the mean of its divisors is an integer number (12833037).

Almost surely, 285502545 is an apocalyptic number.

It is an amenable number.

85502545 is a deficient number, since it is larger than the sum of its proper divisors (17161751).

85502545 is a wasteful number, since it uses less digits than its factorization.

85502545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10211.

The product of its (nonzero) digits is 40000, while the sum is 34.

The square root of 85502545 is about 9246.7586212683. The cubic root of 85502545 is about 440.5477767858.

The spelling of 85502545 in words is "eighty-five million, five hundred two thousand, five hundred forty-five".

Divisors: 1 5 2113 8093 10565 40465 17100509 85502545