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68343654 = 23311093371
BaseRepresentation
bin1000001001011…
…01011101100110
311202121012212110
410010231131212
5114443444104
610440501450
71456624431
oct404553546
9152535773
1068343654
113563a665
121aa7a886
131120b942
149110818
155eeee89
hex412d766

68343654 has 32 divisors (see below), whose sum is σ = 142433280. Its totient is φ = 21837600.

The previous prime is 68343647. The next prime is 68343661. The reversal of 68343654 is 45634386.

It is an interprime number because it is at equal distance from previous prime (68343647) and next prime (68343661).

It is a congruent number.

It is an unprimeable number.

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, 18589 + ... + 21959.

It is an arithmetic number, because the mean of its divisors is an integer number (4451040).

Almost surely, 268343654 is an apocalyptic number.

68343654 is an abundant number, since it is smaller than the sum of its proper divisors (74089626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68343654 is a wasteful number, since it uses less digits than its factorization.

68343654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3516.

The product of its digits is 207360, while the sum is 39.

The square root of 68343654 is about 8267.0220756933. The cubic root of 68343654 is about 408.8519419539.

The spelling of 68343654 in words is "sixty-eight million, three hundred forty-three thousand, six hundred fifty-four".

Divisors: 1 2 3 6 31 62 93 109 186 218 327 654 3371 3379 6742 6758 10113 10137 20226 20274 104501 209002 313503 367439 627006 734878 1102317 2204634 11390609 22781218 34171827 68343654