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68837678 = 2713378229
BaseRepresentation
bin1000001101001…
…10000100101110
311210112022112122
410012212010232
5120110301203
610455232542
71464052640
oct406460456
9153468478
1068837678
1135947848
121b078752
1311352770
1491dc890
15609b538
hex41a612e

68837678 has 16 divisors (see below), whose sum is σ = 127085280. Its totient is φ = 27232416.

The previous prime is 68837663. The next prime is 68837761. The reversal of 68837678 is 87673886.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188933 + ... + 189296.

It is an arithmetic number, because the mean of its divisors is an integer number (7942830).

Almost surely, 268837678 is an apocalyptic number.

68837678 is a deficient number, since it is larger than the sum of its proper divisors (58247602).

68837678 is a wasteful number, since it uses less digits than its factorization.

68837678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378251.

The product of its digits is 2709504, while the sum is 53.

The square root of 68837678 is about 8296.8474735890. The cubic root of 68837678 is about 409.8347102916.

The spelling of 68837678 in words is "sixty-eight million, eight hundred thirty-seven thousand, six hundred seventy-eight".

Divisors: 1 2 7 13 14 26 91 182 378229 756458 2647603 4916977 5295206 9833954 34418839 68837678