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6534468 = 2232181513
BaseRepresentation
bin11000111011010101000100
3110021222121100
4120323111010
53133100333
6352020100
7106353633
oct30732504
913258540
106534468
113763496
122231630
13147a365
14c2151a
15891213
hex63b544

6534468 has 18 divisors (see below), whose sum is σ = 16517774. Its totient is φ = 2178144.

The previous prime is 6534467. The next prime is 6534481. The reversal of 6534468 is 8644356.

It can be written as a sum of positive squares in only one way, i.e., 3968064 + 2566404 = 1992^2 + 1602^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 181513 = 6534468 / (6 + 5 + 3 + 4 + 4 + 6 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6534467) 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 5 ways as a sum of consecutive naturals, for example, 90721 + ... + 90792.

Almost surely, 26534468 is an apocalyptic number.

It is an amenable number.

6534468 is an abundant number, since it is smaller than the sum of its proper divisors (9983306).

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

6534468 is a wasteful number, since it uses less digits than its factorization.

6534468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181523 (or 181518 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 6534468 is about 2556.2605501005. The cubic root of 6534468 is about 186.9548538866.

The spelling of 6534468 in words is "six million, five hundred thirty-four thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 181513 363026 544539 726052 1089078 1633617 2178156 3267234 6534468