Search a number
-
+
68262015 = 3512833547
BaseRepresentation
bin1000001000110…
…01100001111111
311202110001212210
410010121201333
5114433341030
610435031503
71456134423
oct404314177
9152401783
1068262015
1135594298
121aa3b593
13111b0733
1490ccb83
155ed5bb0
hex411987f

68262015 has 16 divisors (see below), whose sum is σ = 109335168. Its totient is φ = 36367776.

The previous prime is 68261981. The next prime is 68262037. The reversal of 68262015 is 51026286.

It is not a de Polignac number, because 68262015 - 26 = 68261951 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17472 + ... + 21018.

It is an arithmetic number, because the mean of its divisors is an integer number (6833448).

Almost surely, 268262015 is an apocalyptic number.

68262015 is a deficient number, since it is larger than the sum of its proper divisors (41073153).

68262015 is a wasteful number, since it uses less digits than its factorization.

68262015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4838.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 68262015 is about 8262.0829698085. The cubic root of 68262015 is about 408.6890808781.

The spelling of 68262015 in words is "sixty-eight million, two hundred sixty-two thousand, fifteen".

Divisors: 1 3 5 15 1283 3547 3849 6415 10641 17735 19245 53205 4550801 13652403 22754005 68262015