Search a number
-
+
68010121 is a prime number
BaseRepresentation
bin1000000110111…
…00000010001001
311201222021100101
410003130002021
5114402310441
610425405401
71454035144
oct403340211
9151867311
1068010121
1135432013
121a939861
1311122b9a
14906505b
155e86231
hex40dc089

68010121 has 2 divisors, whose sum is σ = 68010122. Its totient is φ = 68010120.

The previous prime is 68010109. The next prime is 68010143. The reversal of 68010121 is 12101086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51322896 + 16687225 = 7164^2 + 4085^2 .

It is a cyclic number.

It is not a de Polignac number, because 68010121 - 27 = 68009993 is a prime.

It is not a weakly prime, because it can be changed into another prime (68010521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34005060 + 34005061.

It is an arithmetic number, because the mean of its divisors is an integer number (34005061).

Almost surely, 268010121 is an apocalyptic number.

It is an amenable number.

68010121 is a deficient number, since it is larger than the sum of its proper divisors (1).

68010121 is an equidigital number, since it uses as much as digits as its factorization.

68010121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 68010121 is about 8246.8249041677. The cubic root of 68010121 is about 408.1857593986.

It can be divided in two parts, 680 and 10121, that added together give a palindrome (10801).

The spelling of 68010121 in words is "sixty-eight million, ten thousand, one hundred twenty-one".