Search a number
-
+
10781047 is a prime number
BaseRepresentation
bin101001001000…
…000101110111
3202021201211001
4221020011313
510224443142
61023024131
7160431424
oct51100567
922251731
1010781047
1160a3a62
12373b047
132306224
141608d4b
15e2e5b7
hexa48177

10781047 has 2 divisors, whose sum is σ = 10781048. Its totient is φ = 10781046.

The previous prime is 10781039. The next prime is 10781063. The reversal of 10781047 is 74018701.

10781047 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10781047 - 23 = 10781039 is a prime.

It is a pancake number, because a pancake can be divided into 10781047 parts by 4643 straight cuts.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10781027) 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 as a sum of consecutive naturals, namely, 5390523 + 5390524.

It is an arithmetic number, because the mean of its divisors is an integer number (5390524).

Almost surely, 210781047 is an apocalyptic number.

10781047 is a deficient number, since it is larger than the sum of its proper divisors (1).

10781047 is an equidigital number, since it uses as much as digits as its factorization.

10781047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1568, while the sum is 28.

The square root of 10781047 is about 3283.4504716837. The cubic root of 10781047 is about 220.9125115232.

Adding to 10781047 its reverse (74018701), we get a palindrome (84799748).

The spelling of 10781047 in words is "ten million, seven hundred eighty-one thousand, forty-seven".