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28313543494860 = 22351336299414737
BaseRepresentation
bin1100111000000010000101…
…01100111100110011001100
310201020202012112020202111220
412130001002230330303030
512202342114113313420
6140115021243243340
75651405000540331
oct634010254746314
9121222175222456
1028313543494860
119026785196728
123213430519550
1312a4c5687ba80
146dc550642988
153417784b7840
hex19c042b3cccc

28313543494860 has 48 divisors (see below), whose sum is σ = 85376223463776. Its totient is φ = 6969487629312.

The previous prime is 28313543494799. The next prime is 28313543494867. The reversal of 28313543494860 is 6849434531382.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 28313543494794 and 28313543494803.

It is not an unprimeable number, because it can be changed into a prime (28313543494867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18149706589 + ... + 18149708148.

It is an arithmetic number, because the mean of its divisors is an integer number (1778671322162).

Almost surely, 228313543494860 is an apocalyptic number.

28313543494860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28313543494860 is an abundant number, since it is smaller than the sum of its proper divisors (57062679968916).

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

28313543494860 is a wasteful number, since it uses less digits than its factorization.

28313543494860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36299414762 (or 36299414760 counting only the distinct ones).

The product of its (nonzero) digits is 59719680, while the sum is 60.

The spelling of 28313543494860 in words is "twenty-eight trillion, three hundred thirteen billion, five hundred forty-three million, four hundred ninety-four thousand, eight hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 36299414737 72598829474 108898244211 145197658948 181497073685 217796488422 362994147370 435592976844 471892391581 544491221055 725988294740 943784783162 1088982442110 1415677174743 1887569566324 2177964884220 2359461957905 2831354349486 4718923915810 5662708698972 7078385873715 9437847831620 14156771747430 28313543494860