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68271626 = 2172294073
BaseRepresentation
bin1000001000110…
…11111000001010
311202110120001202
410010123320022
5114434143001
610435144202
71456204433
oct404337012
9152416052
1068271626
11355a0535
121aa45062
13111b4c17
1490d248a
155ed896b
hex411be0a

68271626 has 24 divisors (see below), whose sum is σ = 112564620. Its totient is φ = 31012352.

The previous prime is 68271583. The next prime is 68271629. The reversal of 68271626 is 62617286.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 39702601 + 28569025 = 6301^2 + 5345^2 .

It is a super-2 number, since 2×682716262 = 9322029833367752, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68271626.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68271629) 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 11 ways as a sum of consecutive naturals, for example, 14726 + ... + 18798.

Almost surely, 268271626 is an apocalyptic number.

68271626 is a deficient number, since it is larger than the sum of its proper divisors (44292994).

68271626 is a wasteful number, since it uses less digits than its factorization.

68271626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4138 (or 4121 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 68271626 is about 8262.6645823245. The cubic root of 68271626 is about 408.7082605367.

The spelling of 68271626 in words is "sixty-eight million, two hundred seventy-one thousand, six hundred twenty-six".

Divisors: 1 2 17 29 34 58 289 493 578 986 4073 8146 8381 16762 69241 118117 138482 236234 1177097 2007989 2354194 4015978 34135813 68271626