Search a number
-
+
68668119 = 32134313649
BaseRepresentation
bin1000001011111…
…00101011010111
311210012200221200
410011330223113
5120034334434
610451443543
71462445412
oct405745327
9153180850
1068668119
1135841413
121abb65b3
13112c3530
149196b79
156066199
hex417cad7

68668119 has 24 divisors (see below), whose sum is σ = 109309200. Its totient is φ = 41271552.

The previous prime is 68668097. The next prime is 68668123. The reversal of 68668119 is 91186686.

It is a happy number.

It is not a de Polignac number, because 68668119 - 211 = 68666071 is a prime.

It is a super-2 number, since 2×686681192 = 9430621133996322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68668139) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1794 + ... + 11855.

It is an arithmetic number, because the mean of its divisors is an integer number (4554550).

Almost surely, 268668119 is an apocalyptic number.

68668119 is a deficient number, since it is larger than the sum of its proper divisors (40641081).

68668119 is a wasteful number, since it uses less digits than its factorization.

68668119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13711 (or 13708 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 68668119 is about 8286.6228947624. The cubic root of 68668119 is about 409.4979359161.

The spelling of 68668119 in words is "sixty-eight million, six hundred sixty-eight thousand, one hundred nineteen".

Divisors: 1 3 9 13 39 43 117 129 387 559 1677 5031 13649 40947 122841 177437 532311 586907 1596933 1760721 5282163 7629791 22889373 68668119