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68527856 = 2423316007
BaseRepresentation
bin1000001010110…
…10011011110000
311202221120112202
410011122123300
5120020342411
610444442332
71461322445
oct405323360
9152846482
1068527856
1135755aa1
121ab493a8
1311274737
14915b9cc
15603983b
hex415a6f0

68527856 has 40 divisors (see below), whose sum is σ = 143038464. Its totient is φ = 31711680.

The previous prime is 68527847. The next prime is 68527873. The reversal of 68527856 is 65872586.

It is a self number, because there is not a number n which added to its sum of digits gives 68527856.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8405 + ... + 14411.

Almost surely, 268527856 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 68527856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71519232).

68527856 is an abundant number, since it is smaller than the sum of its proper divisors (74510608).

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

68527856 is a wasteful number, since it uses less digits than its factorization.

68527856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6069 (or 6063 counting only the distinct ones).

The product of its digits is 806400, while the sum is 47.

The square root of 68527856 is about 8278.1553500765. The cubic root of 68527856 is about 409.2189293849.

The spelling of 68527856 in words is "sixty-eight million, five hundred twenty-seven thousand, eight hundred fifty-six".

Divisors: 1 2 4 8 16 23 31 46 62 92 124 184 248 368 496 713 1426 2852 5704 6007 11408 12014 24028 48056 96112 138161 186217 276322 372434 552644 744868 1105288 1489736 2210576 2979472 4282991 8565982 17131964 34263928 68527856