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68963279480 = 23529349170347
BaseRepresentation
bin100000000111010001…
…0000010001001111000
320121000011120120200022
41000032202002021320
52112214044420410
651403054230012
74660655126564
oct1001642021170
9217004516608
1068963279480
1127279a78657
12114477b5308
136670721564
1434a306a6a4
151bd95c9455
hex100e882278

68963279480 has 64 divisors (see below), whose sum is σ = 160978860000. Its totient is φ = 26557622784.

The previous prime is 68963279477. The next prime is 68963279519. The reversal of 68963279480 is 8497236986.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 319667 + ... + 490013.

Almost surely, 268963279480 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 68963279480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80489430000).

68963279480 is an abundant number, since it is smaller than the sum of its proper divisors (92015580520).

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

68963279480 is a wasteful number, since it uses less digits than its factorization.

68963279480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170736 (or 170732 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 62.

The spelling of 68963279480 in words is "sixty-eight billion, nine hundred sixty-three million, two hundred seventy-nine thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 29 40 58 116 145 232 290 349 580 698 1160 1396 1745 2792 3490 6980 10121 13960 20242 40484 50605 80968 101210 170347 202420 340694 404840 681388 851735 1362776 1703470 3406940 4940063 6813880 9880126 19760252 24700315 39520504 49400630 59451103 98801260 118902206 197602520 237804412 297255515 475608824 594511030 1189022060 1724081987 2378044120 3448163974 6896327948 8620409935 13792655896 17240819870 34481639740 68963279480