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28803643149984 = 2534611554141879
BaseRepresentation
bin1101000110010010111101…
…11010110000111010100000
310202222121020102012211202120
412203021132322300322200
512233404330121244414
6141132113323544240
76031665062062533
oct643113672607240
9122877212184676
1028803643149984
1191a561371551a
12329240998b080
13130c230861bc1
14718164a44a1a
1534e3aed752a9
hex1a325eeb0ea0

28803643149984 has 96 divisors (see below), whose sum is σ = 75780260519040. Its totient is φ = 9579542246400.

The previous prime is 28803643149977. The next prime is 28803643150001. The reversal of 28803643149984 is 48994134630882.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Smith number, since the sum of its digits (69) coincides with the sum of the digits of its prime factors.

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, 687761557 + ... + 687803435.

It is an arithmetic number, because the mean of its divisors is an integer number (789377713740).

Almost surely, 228803643149984 is an apocalyptic number.

28803643149984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28803643149984 is an abundant number, since it is smaller than the sum of its proper divisors (46976617369056).

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

28803643149984 is a wasteful number, since it uses less digits than its factorization.

28803643149984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57894 (or 57886 counting only the distinct ones).

The product of its (nonzero) digits is 286654464, while the sum is 69.

The spelling of 28803643149984 in words is "twenty-eight trillion, eight hundred three billion, six hundred forty-three million, one hundred forty-nine thousand, nine hundred eighty-four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 461 922 1383 1844 2766 3688 5532 7376 11064 14752 15541 22128 31082 41879 44256 46623 62164 83758 93246 124328 125637 167516 186492 248656 251274 335032 372984 497312 502548 670064 745968 1005096 1340128 1491936 2010192 4020384 7164401 14328802 19306219 21493203 28657604 38612438 42986406 57315208 57918657 77224876 85972812 114630416 115837314 154449752 171945624 229260832 231674628 308899504 343891248 463349256 617799008 650841539 687782496 926698512 1301683078 1853397024 1952524617 2603366156 3905049234 5206732312 7810098468 10413464624 15620196936 20826929248 31240393872 62480787744 300037949479 600075898958 900113848437 1200151797916 1800227696874 2400303595832 3600455393748 4800607191664 7200910787496 9601214383328 14401821574992 28803643149984