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28873611073494 = 23311342171420603
BaseRepresentation
bin1101001000010101010010…
…10101001101011111010110
310210020021211121012121222000
412210022221111031133112
512241031123413322434
6141224204231220130
76040022666444655
oct644125125153726
9123207747177860
1028873611073494
119222258798aa0
1232a3a95b17646
131315a01458385
1471b6c12ab19c
1535110774bb99
hex1a42a954d7d6

28873611073494 has 64 divisors (see below), whose sum is σ = 69998727847680. Its totient is φ = 8749317245760.

The previous prime is 28873611073481. The next prime is 28873611073529. The reversal of 28873611073494 is 49437011637882.

28873611073494 is a `hidden beast` number, since 2 + 8 + 8 + 7 + 3 + 61 + 10 + 73 + 494 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19614597 + ... + 21035199.

It is an arithmetic number, because the mean of its divisors is an integer number (1093730122620).

Almost surely, 228873611073494 is an apocalyptic number.

28873611073494 is an abundant number, since it is smaller than the sum of its proper divisors (41125116774186).

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

28873611073494 is a wasteful number, since it uses less digits than its factorization.

28873611073494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1454842 (or 1454836 counting only the distinct ones).

The product of its (nonzero) digits is 48771072, while the sum is 63.

The spelling of 28873611073494 in words is "twenty-eight trillion, eight hundred seventy-three billion, six hundred eleven million, seventy-three thousand, four hundred ninety-four".

Divisors: 1 2 3 6 9 11 18 22 27 33 54 66 99 198 297 594 34217 68434 102651 205302 307953 376387 615906 752774 923859 1129161 1420603 1847718 2258322 2841206 3387483 4261809 6774966 8523618 10162449 12785427 15626633 20324898 25570854 31253266 38356281 46879899 76712562 93759798 140639697 281279394 421919091 843838182 48608772851 97217545702 145826318553 291652637106 437478955659 534696501361 874957911318 1069393002722 1312436866977 1604089504083 2624873733954 3208179008166 4812268512249 9624537024498 14436805536747 28873611073494