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68122416 = 2438317099
BaseRepresentation
bin1000000111101…
…11011100110000
311202011222101110
410003313130300
5114414404131
610432033320
71455013425
oct403673460
9152158343
1068122416
11354a941a
121a992840
131116202b
149093d4c
155ea9646
hex40f7730

68122416 has 40 divisors (see below), whose sum is σ = 178113600. Its totient is φ = 22432576.

The previous prime is 68122399. The next prime is 68122423. The reversal of 68122416 is 61422186.

It is a nude number because it is divisible by every one of its digits.

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 7 ways as a sum of consecutive naturals, for example, 4566 + ... + 12533.

It is an arithmetic number, because the mean of its divisors is an integer number (4452840).

Almost surely, 268122416 is an apocalyptic number.

It is an amenable number.

68122416 is an abundant number, since it is smaller than the sum of its proper divisors (109991184).

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

68122416 is a wasteful number, since it uses less digits than its factorization.

68122416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17193 (or 17187 counting only the distinct ones).

The product of its digits is 4608, while the sum is 30.

The square root of 68122416 is about 8253.6304739187. The cubic root of 68122416 is about 408.4102946797.

The spelling of 68122416 in words is "sixty-eight million, one hundred twenty-two thousand, four hundred sixteen".

Divisors: 1 2 3 4 6 8 12 16 24 48 83 166 249 332 498 664 996 1328 1992 3984 17099 34198 51297 68396 102594 136792 205188 273584 410376 820752 1419217 2838434 4257651 5676868 8515302 11353736 17030604 22707472 34061208 68122416