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6630071 = 75231811
BaseRepresentation
bin11001010010101010110111
3110110211202012
4121102222313
53144130241
6354034435
7110232440
oct31225267
913424665
106630071
1138192a8
122278a1b
1314b1a26
14c482c7
158ae6eb
hex652ab7

6630071 has 8 divisors (see below), whose sum is σ = 7595904. Its totient is φ = 5668920.

The previous prime is 6630061. The next prime is 6630089. The reversal of 6630071 is 1700366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-6630071 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6630011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2756 + ... + 4566.

It is an arithmetic number, because the mean of its divisors is an integer number (949488).

Almost surely, 26630071 is an apocalyptic number.

6630071 is a deficient number, since it is larger than the sum of its proper divisors (965833).

6630071 is a wasteful number, since it uses less digits than its factorization.

6630071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2341.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 6630071 is about 2574.8924249374. The cubic root of 6630071 is about 187.8621953012.

The spelling of 6630071 in words is "six million, six hundred thirty thousand, seventy-one".

Divisors: 1 7 523 1811 3661 12677 947153 6630071