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80545408614 = 23311235112
BaseRepresentation
bin100101100000011100…
…0010110011001100110
321200220100101200222000
41023000320112121212
52304424111033424
6101000235350130
75550663451116
oct1130070263146
9250810350860
1080545408614
1131182868700
121373a5b2346
1377981284c8
143c81391046
1521663063c9
hex12c0e16666

80545408614 has 72 divisors (see below), whose sum is σ = 196796902680. Its totient is φ = 24400747800.

The previous prime is 80545408613. The next prime is 80545408633. The reversal of 80545408614 is 41680454508.

It is a happy number.

80545408614 is a `hidden beast` number, since 8 + 0 + 545 + 40 + 8 + 61 + 4 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 80545408614.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80545408613) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 22939119 + ... + 22942629.

It is an arithmetic number, because the mean of its divisors is an integer number (2733290315).

Almost surely, 280545408614 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80545408614, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98398451340).

80545408614 is an abundant number, since it is smaller than the sum of its proper divisors (116251494066).

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

80545408614 is an equidigital number, since it uses as much as digits as its factorization.

80545408614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7055 (or 3527 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 45.

The spelling of 80545408614 in words is "eighty billion, five hundred forty-five million, four hundred eight thousand, six hundred fourteen".

Divisors: 1 2 3 6 9 11 18 22 27 33 54 66 99 121 198 242 297 363 594 726 1089 2178 3267 3511 6534 7022 10533 21066 31599 38621 63198 77242 94797 115863 189594 231726 347589 424831 695178 849662 1042767 1274493 2085534 2548986 3823479 7646958 11470437 12327121 22940874 24654242 36981363 73962726 110944089 135598331 221888178 271196662 332832267 406794993 665664534 813589986 1220384979 1491581641 2440769958 2983163282 3661154937 4474744923 7322309874 8949489846 13424234769 26848469538 40272704307 80545408614