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6630864 = 243138143
BaseRepresentation
bin11001010010110111010000
3110110212211120
4121102313100
53144141424
6354042240
7110234652
oct31226720
913425746
106630864
113819959
122279380
1314b21b6
14c486d2
158aea79
hex652dd0

6630864 has 20 divisors (see below), whose sum is σ = 17129856. Its totient is φ = 2210272.

The previous prime is 6630859. The next prime is 6630887. The reversal of 6630864 is 4680366.

It is a congruent number.

It is an unprimeable number.

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, 69024 + ... + 69119.

Almost surely, 26630864 is an apocalyptic number.

It is an amenable number.

6630864 is an abundant number, since it is smaller than the sum of its proper divisors (10498992).

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

6630864 is a wasteful number, since it uses less digits than its factorization.

6630864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138154 (or 138148 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 6630864 is about 2575.0464073488. The cubic root of 6630864 is about 187.8696848531.

The spelling of 6630864 in words is "six million, six hundred thirty thousand, eight hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 16 24 48 138143 276286 414429 552572 828858 1105144 1657716 2210288 3315432 6630864