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28611842743 = 11294167103317
BaseRepresentation
bin11010101001011001…
…100001001010110111
32201212000020012121101
4122221121201022313
5432044112431433
621051043030531
72032012436101
oct325131411267
981760205541
1028611842743
1111152703a30
12566606b447
13290c901b83
141555d3a571
15b26d2307d
hex6a96612b7

28611842743 has 64 divisors (see below), whose sum is σ = 34003307520. Its totient is φ = 23825894400.

The previous prime is 28611842719. The next prime is 28611842761. The reversal of 28611842743 is 34724811682.

It is not a de Polignac number, because 28611842743 - 25 = 28611842711 is a prime.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28611842693 and 28611842702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28611849743) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 90258021 + ... + 90258337.

It is an arithmetic number, because the mean of its divisors is an integer number (531301680).

Almost surely, 228611842743 is an apocalyptic number.

28611842743 is a deficient number, since it is larger than the sum of its proper divisors (5391464777).

28611842743 is a wasteful number, since it uses less digits than its factorization.

28611842743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568.

The product of its digits is 516096, while the sum is 46.

The spelling of 28611842743 in words is "twenty-eight billion, six hundred eleven million, eight hundred forty-two thousand, seven hundred forty-three".

Divisors: 1 11 29 41 67 103 317 319 451 737 1133 1189 1943 2747 2987 3487 4223 6901 9193 12997 13079 21239 21373 30217 32651 32857 46453 75911 79663 101123 122467 142967 200129 233629 282941 359161 376913 615931 870799 876293 946879 1338691 1347137 2187617 2201419 3112351 4146043 6775241 8205289 9578789 10415669 14725601 24063787 25253171 38822039 63440893 89692297 90258179 277784881 427042429 697849823 986615267 2601076613 28611842743