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68843319 = 3176122129
BaseRepresentation
bin1000001101001…
…11011100110111
311210112121021120
410012213130313
5120110441234
610455315023
71464105246
oct406473467
9153477246
1068843319
1135951006
121b07ba73
13113551bc
14920095d
15609d049
hex41a7737

68843319 has 16 divisors (see below), whose sum is σ = 98788320. Its totient is φ = 42485760.

The previous prime is 68843309. The next prime is 68843321. The reversal of 68843319 is 91334886.

It is a happy number.

It is not a de Polignac number, because 68843319 - 28 = 68843063 is a prime.

It is a super-2 number, since 2×688433192 = 9478805141871522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68843309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7954 + ... + 14175.

It is an arithmetic number, because the mean of its divisors is an integer number (6174270).

Almost surely, 268843319 is an apocalyptic number.

68843319 is a deficient number, since it is larger than the sum of its proper divisors (29945001).

68843319 is a wasteful number, since it uses less digits than its factorization.

68843319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22210.

The product of its digits is 124416, while the sum is 42.

The square root of 68843319 is about 8297.1874150220. The cubic root of 68843319 is about 409.8459048124.

The spelling of 68843319 in words is "sixty-eight million, eight hundred forty-three thousand, three hundred nineteen".

Divisors: 1 3 17 51 61 183 1037 3111 22129 66387 376193 1128579 1349869 4049607 22947773 68843319