Search a number
-
+
85225441 = 743594799
BaseRepresentation
bin1010001010001…
…10111111100001
312221100220022211
411011012333201
5133304203231
612242402121
72053255450
oct505067741
9187326284
1085225441
1144120154
1224660341
131486c972
14b466b97
157736eb1
hex5146fe1

85225441 has 16 divisors (see below), whose sum is σ = 101376000. Its totient is φ = 70127568.

The previous prime is 85225411. The next prime is 85225447. The reversal of 85225441 is 14452258.

It is not a de Polignac number, because 85225441 - 29 = 85224929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85225447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15360 + ... + 20158.

It is an arithmetic number, because the mean of its divisors is an integer number (6336000).

Almost surely, 285225441 is an apocalyptic number.

It is an amenable number.

85225441 is a deficient number, since it is larger than the sum of its proper divisors (16150559).

85225441 is a wasteful number, since it uses less digits than its factorization.

85225441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4908.

The product of its digits is 12800, while the sum is 31.

The square root of 85225441 is about 9231.7626160988. The cubic root of 85225441 is about 440.0713400166.

Adding to 85225441 its reverse (14452258), we get a palindrome (99677699).

The spelling of 85225441 in words is "eighty-five million, two hundred twenty-five thousand, four hundred forty-one".

Divisors: 1 7 43 59 301 413 2537 4799 17759 33593 206357 283141 1444499 1981987 12175063 85225441