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BaseRepresentation
bin10011001011000010011
31011220210021
42121120103
5130100433
621244311
75224420
oct2313023
91156707
10628243
1139a010
12263697
1318cc55
14124d47
15c622d
hex99613

628243 has 16 divisors (see below), whose sum is σ = 806400. Its totient is φ = 475200.

The previous prime is 628231. The next prime is 628261. The reversal of 628243 is 342826.

It is a happy number.

It is not a de Polignac number, because 628243 - 213 = 620051 is a prime.

628243 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (628213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3058 + ... + 3256.

It is an arithmetic number, because the mean of its divisors is an integer number (50400).

2628243 is an apocalyptic number.

628243 is a deficient number, since it is larger than the sum of its proper divisors (178157).

628243 is a wasteful number, since it uses less digits than its factorization.

628243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258.

The product of its digits is 2304, while the sum is 25.

The square root of 628243 is about 792.6178145866. The cubic root of 628243 is about 85.6464210174.

The spelling of 628243 in words is "six hundred twenty-eight thousand, two hundred forty-three".