Search a number
-
+
628028000 = 2553157007
BaseRepresentation
bin100101011011101…
…111001001100000
31121202202010110022
4211123233021200
52241233344000
6142152453012
721364102265
oct4533571140
91552663408
10628028000
112a2561806
121563aa168
13a0160102
145d5a126c
153a207585
hex256ef260

628028000 has 48 divisors (see below), whose sum is σ = 1543074624. Its totient is φ = 251209600.

The previous prime is 628027951. The next prime is 628028021. The reversal of 628028000 is 820826.

628028000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74504 + ... + 82503.

It is an arithmetic number, because the mean of its divisors is an integer number (32147388).

Almost surely, 2628028000 is an apocalyptic number.

It is an amenable number.

628028000 is an abundant number, since it is smaller than the sum of its proper divisors (915046624).

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

628028000 is a wasteful number, since it uses less digits than its factorization.

628028000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157032 (or 157014 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 628028000 is about 25060.4868268755. The cubic root of 628028000 is about 856.3664980815.

Adding to 628028000 its reverse (820826), we get a palindrome (628848826).

The spelling of 628028000 in words is "six hundred twenty-eight million, twenty-eight thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 500 800 1000 2000 4000 157007 314014 628028 785035 1256056 1570070 2512112 3140140 3925175 5024224 6280280 7850350 12560560 15700700 19625875 25121120 31401400 39251750 62802800 78503500 125605600 157007000 314014000 628028000