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630284 = 22157571
BaseRepresentation
bin10011001111000001100
31012000120212
42121320030
5130132114
621301552
75233364
oct2317014
91160525
10630284
113a05a6
122648b8
13190b65
141259a4
15c6b3e
hex99e0c

630284 has 6 divisors (see below), whose sum is σ = 1103004. Its totient is φ = 315140.

The previous prime is 630281. The next prime is 630299. The reversal of 630284 is 482036.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (630281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78782 + ... + 78789.

It is an arithmetic number, because the mean of its divisors is an integer number (183834).

2630284 is an apocalyptic number.

It is an amenable number.

630284 is a deficient number, since it is larger than the sum of its proper divisors (472720).

630284 is a wasteful number, since it uses less digits than its factorization.

630284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157575 (or 157573 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 630284 is about 793.9042763457. The cubic root of 630284 is about 85.7390684952.

The spelling of 630284 in words is "six hundred thirty thousand, two hundred eighty-four".

Divisors: 1 2 4 157571 315142 630284