Search a number
-
+
85283845 = 524177057
BaseRepresentation
bin1010001010101…
…01010000000101
312221110212102221
411011111100011
5133313040340
612243532341
72053620643
oct505252005
9187425387
1085283845
1144160019
122468a0b1
131489041a
14b480193
15774944a
hex5155405

85283845 has 8 divisors (see below), whose sum is σ = 102397464. Its totient is φ = 68189184.

The previous prime is 85283843. The next prime is 85283857. The reversal of 85283845 is 54838258.

It can be written as a sum of positive squares in 4 ways, for example, as 61449921 + 23833924 = 7839^2 + 4882^2 .

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 85283845 - 21 = 85283843 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85283843) 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, 8557 + ... + 15613.

It is an arithmetic number, because the mean of its divisors is an integer number (12799683).

Almost surely, 285283845 is an apocalyptic number.

It is an amenable number.

85283845 is a deficient number, since it is larger than the sum of its proper divisors (17113619).

85283845 is a wasteful number, since it uses less digits than its factorization.

85283845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9479.

The product of its digits is 307200, while the sum is 43.

The square root of 85283845 is about 9234.9252839425. The cubic root of 85283845 is about 440.1718423134.

The spelling of 85283845 in words is "eighty-five million, two hundred eighty-three thousand, eight hundred forty-five".

Divisors: 1 5 2417 7057 12085 35285 17056769 85283845