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85049245 = 540494201
BaseRepresentation
bin1010001000110…
…11111110011101
312221000221122001
411010123332131
5133233033440
612234522301
72051622661
oct504337635
9187027561
1085049245
114400a836
1224596391
131480a6c8
14b41c8a1
1576eeb9a
hex511bf9d

85049245 has 8 divisors (see below), whose sum is σ = 102108600. Its totient is φ = 68006400.

The previous prime is 85049243. The next prime is 85049269. The reversal of 85049245 is 54294058.

It can be written as a sum of positive squares in 4 ways, for example, as 611524 + 84437721 = 782^2 + 9189^2 .

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

It is not a de Polignac number, because 85049245 - 21 = 85049243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85049243) 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, 18145 + ... + 22345.

It is an arithmetic number, because the mean of its divisors is an integer number (12763575).

Almost surely, 285049245 is an apocalyptic number.

It is an amenable number.

85049245 is a deficient number, since it is larger than the sum of its proper divisors (17059355).

85049245 is a wasteful number, since it uses less digits than its factorization.

85049245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8255.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 85049245 is about 9222.2147556864. The cubic root of 85049245 is about 439.7678613635.

The spelling of 85049245 in words is "eighty-five million, forty-nine thousand, two hundred forty-five".

Divisors: 1 5 4049 4201 20245 21005 17009849 85049245