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85230519 = 3115348731
BaseRepresentation
bin1010001010010…
…00001110110111
312221101011021220
411011020032313
5133304334034
612242441423
72053306323
oct505101667
9187334256
1085230519
1144123a50
1224663273
131487207a
14b468983
157738749
hex51483b7

85230519 has 16 divisors (see below), whose sum is σ = 126313344. Its totient is φ = 50679200.

The previous prime is 85230517. The next prime is 85230521. The reversal of 85230519 is 91503258.

It is an interprime number because it is at equal distance from previous prime (85230517) and next prime (85230521).

It is not a de Polignac number, because 85230519 - 21 = 85230517 is a prime.

It is a super-2 number, since 2×852305192 = 14528482738018722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 85230519.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85230517) 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 15 ways as a sum of consecutive naturals, for example, 22617 + ... + 26114.

It is an arithmetic number, because the mean of its divisors is an integer number (7894584).

Almost surely, 285230519 is an apocalyptic number.

85230519 is a deficient number, since it is larger than the sum of its proper divisors (41082825).

85230519 is a wasteful number, since it uses less digits than its factorization.

85230519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48798.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 85230519 is about 9232.0376407378. The cubic root of 85230519 is about 440.0800801215.

The spelling of 85230519 in words is "eighty-five million, two hundred thirty thousand, five hundred nineteen".

Divisors: 1 3 11 33 53 159 583 1749 48731 146193 536041 1608123 2582743 7748229 28410173 85230519