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68981326 = 2251137413
BaseRepresentation
bin1000001110010…
…01001001001110
311210210121120221
410013021021032
5120124400301
610502301554
71465221511
oct407111116
9153717527
1068981326
1135a35767
121b1278ba
13113a2c6b
149238d78
1560c8da1
hex41c924e

68981326 has 8 divisors (see below), whose sum is σ = 103884984. Its totient is φ = 34353000.

The previous prime is 68981321. The next prime is 68981327. The reversal of 68981326 is 62318986.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68981321) 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 3 ways as a sum of consecutive naturals, for example, 68205 + ... + 69208.

It is an arithmetic number, because the mean of its divisors is an integer number (12985623).

Almost surely, 268981326 is an apocalyptic number.

68981326 is a deficient number, since it is larger than the sum of its proper divisors (34903658).

68981326 is a wasteful number, since it uses less digits than its factorization.

68981326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137666.

The product of its digits is 124416, while the sum is 43.

The square root of 68981326 is about 8305.4997441454. The cubic root of 68981326 is about 410.1195883553.

The spelling of 68981326 in words is "sixty-eight million, nine hundred eighty-one thousand, three hundred twenty-six".

Divisors: 1 2 251 502 137413 274826 34490663 68981326