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68044263 = 3719170537
BaseRepresentation
bin1000000111001…
…00010111100111
311202001000011220
410003210113213
5114404404023
610430231423
71454236530
oct403442747
9152030156
1068044263
1135455731
121a955573
13111355a1
149073687
155e913e3
hex40e45e7

68044263 has 16 divisors (see below), whose sum is σ = 109144320. Its totient is φ = 36835776.

The previous prime is 68044259. The next prime is 68044267. The reversal of 68044263 is 36244086.

It is an interprime number because it is at equal distance from previous prime (68044259) and next prime (68044267).

It is not a de Polignac number, because 68044263 - 22 = 68044259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68044267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84870 + ... + 85667.

It is an arithmetic number, because the mean of its divisors is an integer number (6821520).

Almost surely, 268044263 is an apocalyptic number.

68044263 is a deficient number, since it is larger than the sum of its proper divisors (41100057).

68044263 is a wasteful number, since it uses less digits than its factorization.

68044263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170566.

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 68044263 is about 8248.8946532248. The cubic root of 68044263 is about 408.2540528946.

The spelling of 68044263 in words is "sixty-eight million, forty-four thousand, two hundred sixty-three".

Divisors: 1 3 7 19 21 57 133 399 170537 511611 1193759 3240203 3581277 9720609 22681421 68044263