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68409326 = 2175337963
BaseRepresentation
bin1000001001111…
…01011111101110
311202201112221202
410010331133232
5120003044301
610442125502
71460320046
oct404753756
9152645852
1068409326
1135684a37
121aab0892
13112327bb
14912a726
15601466b
hex413d7ee

68409326 has 16 divisors (see below), whose sum is σ = 110703024. Its totient is φ = 31584384.

The previous prime is 68409323. The next prime is 68409331. The reversal of 68409326 is 62390486.

It is a self number, because there is not a number n which added to its sum of digits gives 68409326.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68409323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17180 + ... + 20783.

It is an arithmetic number, because the mean of its divisors is an integer number (6918939).

Almost surely, 268409326 is an apocalyptic number.

68409326 is a deficient number, since it is larger than the sum of its proper divisors (42293698).

68409326 is a wasteful number, since it uses less digits than its factorization.

68409326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38035.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 68409326 is about 8270.9930479961. The cubic root of 68409326 is about 408.9828564698.

The spelling of 68409326 in words is "sixty-eight million, four hundred nine thousand, three hundred twenty-six".

Divisors: 1 2 17 34 53 106 901 1802 37963 75926 645371 1290742 2012039 4024078 34204663 68409326