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68756881250 = 25522748463
BaseRepresentation
bin100000000001000111…
…0101011111101100010
320120110210012110112102
41000002032223331202
52111303230200000
651330402330402
74652600563511
oct1000216537542
9216423173472
1068756881250
1127183515602
12113aa659a02
136639a36c25
1434838a0678
151bc64093d5
hex10023abf62

68756881250 has 48 divisors (see below), whose sum is σ = 129481462656. Its totient is φ = 27381030000.

The previous prime is 68756881213. The next prime is 68756881261. The reversal of 68756881250 is 5218865786.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1394519 + ... + 1442981.

It is an arithmetic number, because the mean of its divisors is an integer number (2697530472).

Almost surely, 268756881250 is an apocalyptic number.

68756881250 is a deficient number, since it is larger than the sum of its proper divisors (60724581406).

68756881250 is an equidigital number, since it uses as much as digits as its factorization.

68756881250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48717 (or 48697 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 56.

The spelling of 68756881250 in words is "sixty-eight billion, seven hundred fifty-six million, eight hundred eighty-one thousand, two hundred fifty".

Divisors: 1 2 5 10 25 50 125 227 250 454 625 1135 1250 2270 3125 5675 6250 11350 28375 48463 56750 96926 141875 242315 283750 484630 709375 1211575 1418750 2423150 6057875 11001101 12115750 22002202 30289375 55005505 60578750 110011010 151446875 275027525 302893750 550055050 1375137625 2750275250 6875688125 13751376250 34378440625 68756881250