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86028469 = 671284007
BaseRepresentation
bin1010010000010…
…11000010110101
312222212200212121
411020023002311
5134010402334
612311515541
72063141602
oct510130265
9188780777
1086028469
114461950a
1224988bb1
1314a91327
14b5d56a9
157844db4
hex520b0b5

86028469 has 4 divisors (see below), whose sum is σ = 87312544. Its totient is φ = 84744396.

The previous prime is 86028451. The next prime is 86028479. The reversal of 86028469 is 96482068.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86028469 - 217 = 85897397 is a prime.

It is a super-2 number, since 2×860284692 = 14801794956967922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86028419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 641937 + ... + 642070.

It is an arithmetic number, because the mean of its divisors is an integer number (21828136).

Almost surely, 286028469 is an apocalyptic number.

It is an amenable number.

86028469 is a deficient number, since it is larger than the sum of its proper divisors (1284075).

86028469 is a wasteful number, since it uses less digits than its factorization.

86028469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284074.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 86028469 is about 9275.1533140968. The cubic root of 86028469 is about 441.4491971914.

It can be divided in two parts, 8602 and 8469, that added together give a palindrome (17071).

The spelling of 86028469 in words is "eighty-six million, twenty-eight thousand, four hundred sixty-nine".

Divisors: 1 67 1284007 86028469