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68126984 = 2330727739
BaseRepresentation
bin1000000111110…
…00100100001000
311202012012122122
410003320210020
5114420030414
610432110412
71455032642
oct403704410
9152165578
1068126984
11355018a2
121a995408
1311164133
149095892
155eaab8e
hex40f8908

68126984 has 16 divisors (see below), whose sum is σ = 128158800. Its totient is φ = 33951312.

The previous prime is 68126977. The next prime is 68126987. The reversal of 68126984 is 48962186.

It is a happy number.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (68126987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11414 + ... + 16325.

It is an arithmetic number, because the mean of its divisors is an integer number (8009925).

Almost surely, 268126984 is an apocalyptic number.

It is an amenable number.

68126984 is a deficient number, since it is larger than the sum of its proper divisors (60031816).

68126984 is a wasteful number, since it uses less digits than its factorization.

68126984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28052 (or 28048 counting only the distinct ones).

The product of its digits is 165888, while the sum is 44.

The square root of 68126984 is about 8253.9071959891. The cubic root of 68126984 is about 408.4194232291.

The spelling of 68126984 in words is "sixty-eight million, one hundred twenty-six thousand, nine hundred eighty-four".

Divisors: 1 2 4 8 307 614 1228 2456 27739 55478 110956 221912 8515873 17031746 34063492 68126984