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6630072 = 2332312011
BaseRepresentation
bin11001010010101010111000
3110110211202020
4121102222320
53144130242
6354034440
7110232441
oct31225270
913424666
106630072
1138192a9
122278a20
1314b1a27
14c482c8
158ae6ec
hex652ab8

6630072 has 32 divisors (see below), whose sum is σ = 17297280. Its totient is φ = 2113760.

The previous prime is 6630061. The next prime is 6630089. The reversal of 6630072 is 2700366.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 7 ways as a sum of consecutive naturals, for example, 5454 + ... + 6557.

It is an arithmetic number, because the mean of its divisors is an integer number (540540).

Almost surely, 26630072 is an apocalyptic number.

It is an amenable number.

6630072 is an abundant number, since it is smaller than the sum of its proper divisors (10667208).

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

6630072 is a wasteful number, since it uses less digits than its factorization.

6630072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12043 (or 12039 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 6630072 is about 2574.8926191203. The cubic root of 6630072 is about 187.8622047462.

The spelling of 6630072 in words is "six million, six hundred thirty thousand, seventy-two".

Divisors: 1 2 3 4 6 8 12 23 24 46 69 92 138 184 276 552 12011 24022 36033 48044 72066 96088 144132 276253 288264 552506 828759 1105012 1657518 2210024 3315036 6630072