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85244742 = 23211239139
BaseRepresentation
bin1010001010010…
…11101101000110
312221101212210200
411011023231012
5133310312432
612243031330
72053365642
oct505135506
9187355720
1085244742
1144133700
122466b546
131487869b
14b46dc22
15773ca7c
hex514bb46

85244742 has 36 divisors (see below), whose sum is σ = 203019180. Its totient is φ = 25831080.

The previous prime is 85244741. The next prime is 85244767. The reversal of 85244742 is 24744258.

It is a junction number, because it is equal to n+sod(n) for n = 85244697 and 85244706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85244741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 17392 + ... + 21747.

Almost surely, 285244742 is an apocalyptic number.

85244742 is an abundant number, since it is smaller than the sum of its proper divisors (117774438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85244742 is a wasteful number, since it uses less digits than its factorization.

85244742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39169 (or 39155 counting only the distinct ones).

The product of its digits is 71680, while the sum is 36.

The square root of 85244742 is about 9232.8079152553. The cubic root of 85244742 is about 440.1045584848.

The spelling of 85244742 in words is "eighty-five million, two hundred forty-four thousand, seven hundred forty-two".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 121 198 242 363 726 1089 2178 39139 78278 117417 234834 352251 430529 704502 861058 1291587 2583174 3874761 4735819 7749522 9471638 14207457 28414914 42622371 85244742