Search a number
-
+
68052306 = 23710315731
BaseRepresentation
bin1000000111001…
…10010101010010
311202001102012210
410003212111102
5114410133211
610430332550
71454302140
oct403462522
9152042183
1068052306
1135460783
121a95a156
131113914a
149076590
155e939a6
hex40e6552

68052306 has 32 divisors (see below), whose sum is σ = 157068288. Its totient is φ = 19253520.

The previous prime is 68052301. The next prime is 68052317. The reversal of 68052306 is 60325086.

It is a super-2 number, since 2×680523062 = 9262232703835272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68052301) 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 15 ways as a sum of consecutive naturals, for example, 3540 + ... + 12191.

It is an arithmetic number, because the mean of its divisors is an integer number (4908384).

Almost surely, 268052306 is an apocalyptic number.

68052306 is an abundant number, since it is smaller than the sum of its proper divisors (89015982).

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

68052306 is a wasteful number, since it uses less digits than its factorization.

68052306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15846.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 68052306 is about 8249.3821586832. The cubic root of 68052306 is about 408.2701378067.

The spelling of 68052306 in words is "sixty-eight million, fifty-two thousand, three hundred six".

Divisors: 1 2 3 6 7 14 21 42 103 206 309 618 721 1442 2163 4326 15731 31462 47193 94386 110117 220234 330351 660702 1620293 3240586 4860879 9721758 11342051 22684102 34026153 68052306