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28298825072896 = 2872474972
BaseRepresentation
bin1100110111100110101010…
…11010101000000100000000
310201012100012202221110021111
412123303111122220010000
512202121443204313041
6140104144544333104
75650344160163200
oct633632532500400
9121170182843244
1028298825072896
119020512006434
123210603314194
1312a374c480751
146db955998400
153411b6273981
hex19bcd56a8100

28298825072896 has 81 divisors (see below), whose sum is σ = 65710876291389. Its totient is φ = 12127812544512.

The previous prime is 28298825072857. The next prime is 28298825072909. The reversal of 28298825072896 is 69827052889282.

The square root of 28298825072896 is 5319664.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 26330034438400 + 1968790634496 = 5131280^2 + 1403136^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 595778620 + ... + 595826116.

Almost surely, 228298825072896 is an apocalyptic number.

28298825072896 is the 5319664-th square number.

It is an amenable number.

28298825072896 is an abundant number, since it is smaller than the sum of its proper divisors (37412051218493).

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

28298825072896 is an frugal number, since it uses more digits than its factorization.

28298825072896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95024 (or 47506 counting only the distinct ones).

The product of its (nonzero) digits is 1114767360, while the sum is 76.

The spelling of 28298825072896 in words is "twenty-eight trillion, two hundred ninety-eight billion, eight hundred twenty-five million, seventy-two thousand, eight hundred ninety-six".

Divisors: 1 2 4 7 8 14 16 28 32 49 56 64 98 112 128 196 224 256 392 448 784 896 1568 1792 3136 6272 12544 47497 94994 189988 332479 379976 664958 759952 1329916 1519904 2327353 2659832 3039808 4654706 5319664 6079616 9309412 10639328 12159232 18618824 21278656 37237648 42557312 74475296 85114624 148950592 297901184 595802368 2255965009 4511930018 9023860036 15791755063 18047720072 31583510126 36095440144 63167020252 72190880288 110542285441 126334040504 144381760576 221084570882 252668081008 288763521152 442169141764 505336162016 577527042304 884338283528 1010672324032 1768676567056 2021344648064 3537353134112 4042689296128 7074706268224 14149412536448 28298825072896