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85282420 = 22531113711
BaseRepresentation
bin1010001010101…
…00111001110100
312221110210111011
411011110321310
5133313014140
612243522004
72053613536
oct505247164
9187423434
1085282420
1144159a43
1224689304
131488c892
14b47d856
157748cea
hex5154e74

85282420 has 24 divisors (see below), whose sum is σ = 179682048. Its totient is φ = 34000800.

The previous prime is 85282411. The next prime is 85282493. The reversal of 85282420 is 2428258.

It is a super-2 number, since 2×852824202 = 14546182322112800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 636 + ... + 13075.

It is an arithmetic number, because the mean of its divisors is an integer number (7486752).

Almost surely, 285282420 is an apocalyptic number.

It is an amenable number.

85282420 is an abundant number, since it is smaller than the sum of its proper divisors (94399628).

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

85282420 is a wasteful number, since it uses less digits than its factorization.

85282420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14031 (or 14029 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 85282420 is about 9234.8481308574. The cubic root of 85282420 is about 440.1693907027.

The spelling of 85282420 in words is "eighty-five million, two hundred eighty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 311 622 1244 1555 3110 6220 13711 27422 54844 68555 137110 274220 4264121 8528242 17056484 21320605 42641210 85282420