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68585280338 = 2312615031163
BaseRepresentation
bin111111111000000000…
…000101001101010010
320120000211022020100002
4333320000011031102
52110430312432323
651301352330002
74645415156351
oct777000051522
9216024266302
1068585280338
11270a566a273
12113610a3902
136610314023
143468b91998
151bb630e828
hexff8005352

68585280338 has 48 divisors (see below), whose sum is σ = 108354189888. Its totient is φ = 32549479200.

The previous prime is 68585280331. The next prime is 68585280347. The reversal of 68585280338 is 83308258586.

It is not an unprimeable number, because it can be changed into a prime (68585280331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58972145 + ... + 58973307.

It is an arithmetic number, because the mean of its divisors is an integer number (2257378956).

Almost surely, 268585280338 is an apocalyptic number.

68585280338 is a deficient number, since it is larger than the sum of its proper divisors (39768909550).

68585280338 is a wasteful number, since it uses less digits than its factorization.

68585280338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791 (or 1760 counting only the distinct ones).

The product of its (nonzero) digits is 11059200, while the sum is 56.

The spelling of 68585280338 in words is "sixty-eight billion, five hundred eighty-five million, two hundred eighty thousand, three hundred thirty-eight".

Divisors: 1 2 31 61 62 122 503 961 1006 1163 1891 1922 2326 3782 15593 30683 31186 36053 58621 61366 70943 72106 117242 141886 483383 584989 951173 966766 1117643 1169978 1902346 2199233 2235286 4398466 18134659 29486363 35684329 36269318 58972726 68176223 71368658 136352446 562174429 1106214199 1124348858 2212428398 34292640169 68585280338