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68267871 = 32710331049
BaseRepresentation
bin1000001000110…
…10111101011111
311202110100220200
410010122331133
5114434032441
610435114543
71456160460
oct404327537
9152410820
1068267871
1135598731
121aa42a53
13111b32b9
1490d0d67
155ed77b6
hex411af5f

68267871 has 24 divisors (see below), whose sum is σ = 112912800. Its totient is φ = 38935296.

The previous prime is 68267867. The next prime is 68267873. The reversal of 68267871 is 17876286.

It is not a de Polignac number, because 68267871 - 22 = 68267867 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68267873) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64555 + ... + 65603.

It is an arithmetic number, because the mean of its divisors is an integer number (4704700).

Almost surely, 268267871 is an apocalyptic number.

68267871 is a deficient number, since it is larger than the sum of its proper divisors (44644929).

68267871 is a wasteful number, since it uses less digits than its factorization.

68267871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2095 (or 2092 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 68267871 is about 8262.4373522587. The cubic root of 68267871 is about 408.7007672937.

The spelling of 68267871 in words is "sixty-eight million, two hundred sixty-seven thousand, eight hundred seventy-one".

Divisors: 1 3 7 9 21 63 1033 1049 3099 3147 7231 7343 9297 9441 21693 22029 65079 66087 1083617 3250851 7585319 9752553 22755957 68267871