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85874481 = 32711294273
BaseRepresentation
bin1010001111001…
…01011100110001
312222120212122100
411013211130301
5133440440411
612304331013
72061630630
oct507453461
9188525570
1085874481
1144523850
1224913a69
1314a39204
14b595517
157814456
hex51e5731

85874481 has 48 divisors (see below), whose sum is σ = 160018560. Its totient is φ = 43061760.

The previous prime is 85874461. The next prime is 85874513. The reversal of 85874481 is 18447858.

It is not a de Polignac number, because 85874481 - 26 = 85874417 is a prime.

It is a super-2 number, since 2×858744812 = 14748852974038722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85874461) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17961 + ... + 22233.

It is an arithmetic number, because the mean of its divisors is an integer number (3333720).

Almost surely, 285874481 is an apocalyptic number.

It is an amenable number.

85874481 is a deficient number, since it is larger than the sum of its proper divisors (74144079).

85874481 is a wasteful number, since it uses less digits than its factorization.

85874481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4326 (or 4323 counting only the distinct ones).

The product of its digits is 286720, while the sum is 45.

The square root of 85874481 is about 9266.8484934200. The cubic root of 85874481 is about 441.1856469213.

The spelling of 85874481 in words is "eighty-five million, eight hundred seventy-four thousand, four hundred eighty-one".

Divisors: 1 3 7 9 11 21 29 33 63 77 87 99 203 231 261 319 609 693 957 1827 2233 2871 4273 6699 12819 20097 29911 38457 47003 89733 123917 141009 269199 329021 371751 423027 867419 987063 1115253 1363087 2602257 2961189 4089261 7806771 9541609 12267783 28624827 85874481