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68932416 = 2637217431
BaseRepresentation
bin1000001101111…
…01001101000000
311210201010111110
410012331031000
5120121314131
610501243320
71464626100
oct406751500
9153633443
1068932416
1135a01a43
121b103540
1311386917
149225200
1560b9646
hex41bd340

68932416 has 168 divisors, whose sum is σ = 225161856. Its totient is φ = 18493440.

The previous prime is 68932387. The next prime is 68932429. The reversal of 68932416 is 61423986.

It is a tau number, because it is divible by the number of its divisors (168).

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 23 ways as a sum of consecutive naturals, for example, 159721 + ... + 160151.

Almost surely, 268932416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68932416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112580928).

68932416 is an abundant number, since it is smaller than the sum of its proper divisors (156229440).

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

68932416 is a wasteful number, since it uses less digits than its factorization.

68932416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477 (or 460 counting only the distinct ones).

The product of its digits is 62208, while the sum is 39.

The square root of 68932416 is about 8302.5547875338. The cubic root of 68932416 is about 410.0226360693.

The spelling of 68932416 in words is "sixty-eight million, nine hundred thirty-two thousand, four hundred sixteen".