MathDB
Problems
Contests
National and Regional Contests
Serbia Contests
Serbia JBMO TST
2011 Serbia JBMO TST
2
2
Part of
2011 Serbia JBMO TST
Problems
(1)
easy problem from Serbia JBMO TST 2011
Source:
5/4/2019
p
(
n
)
p(n)
p
(
n
)
is a product of all digits of n.Calculate:
p
(
1001
)
+
p
(
1002
)
+
.
.
.
+
p
(
2011
)
p(1001) + p(1002) + ... + p(2011)
p
(
1001
)
+
p
(
1002
)
+
...
+
p
(
2011
)
number theory