Search a number
-
+
628027 = 659953
BaseRepresentation
bin10011001010100111011
31011220111021
42121110323
5130044102
621243311
75223661
oct2312473
91156437
10628027
11399934
12263537
1318cb1a
14124c31
15c6137
hex9953b

628027 has 4 divisors (see below), whose sum is σ = 629640. Its totient is φ = 626416.

The previous prime is 628021. The next prime is 628037. The reversal of 628027 is 720826.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 628027 - 211 = 625979 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 627992 and 628010.

It is not an unprimeable number, because it can be changed into a prime (628021) by changing a digit.

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, 183 + ... + 1135.

It is an arithmetic number, because the mean of its divisors is an integer number (157410).

2628027 is an apocalyptic number.

628027 is a deficient number, since it is larger than the sum of its proper divisors (1613).

628027 is an equidigital number, since it uses as much as digits as its factorization.

628027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1612.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 628027 is about 792.4815455265. The cubic root of 628027 is about 85.6366043555.

The spelling of 628027 in words is "six hundred twenty-eight thousand, twenty-seven".

Divisors: 1 659 953 628027