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6489468 = 2232180263
BaseRepresentation
bin11000110000010101111100
3110012200212200
4120300111330
53130130333
6351031500
7106105506
oct30602574
913180780
106489468
1137326a7
12220b590
131462a2b
14c0cd76
15882c13
hex63057c

6489468 has 18 divisors (see below), whose sum is σ = 16404024. Its totient is φ = 2163144.

The previous prime is 6489463. The next prime is 6489487. The reversal of 6489468 is 8649846.

It is a happy number.

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

It is a super-2 number, since 2×64894682 = 84226389846048, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6489463) 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, 90096 + ... + 90167.

Almost surely, 26489468 is an apocalyptic number.

It is an amenable number.

6489468 is an abundant number, since it is smaller than the sum of its proper divisors (9914556).

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

6489468 is a wasteful number, since it uses less digits than its factorization.

6489468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180273 (or 180268 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 6489468 is about 2547.4434242982. The cubic root of 6489468 is about 186.5247064088.

The spelling of 6489468 in words is "six million, four hundred eighty-nine thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 180263 360526 540789 721052 1081578 1622367 2163156 3244734 6489468