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2828431998 = 2327219168781
BaseRepresentation
bin1010100010010110…
…0111001001111110
321022010012020021200
42220211213021332
521243034310443
61144355040330
7130043163300
oct25045471176
97263166250
102828431998
111221637907
1266b2a00a6
13360ca3602
141cb905970
151184a3dd3
hexa896727e

2828431998 has 72 divisors (see below), whose sum is σ = 7504047720. Its totient is φ = 765586080.

The previous prime is 2828431987. The next prime is 2828432011. The reversal of 2828431998 is 8991348282.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 67633 + ... + 101148.

It is an arithmetic number, because the mean of its divisors is an integer number (104222885).

Almost surely, 22828431998 is an apocalyptic number.

2828431998 is an abundant number, since it is smaller than the sum of its proper divisors (4675615722).

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

2828431998 is a wasteful number, since it uses less digits than its factorization.

2828431998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168822 (or 168812 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 54.

The square root of 2828431998 is about 53183.0047853635. The cubic root of 2828431998 is about 1414.2143745816.

The spelling of 2828431998 in words is "two billion, eight hundred twenty-eight million, four hundred thirty-one thousand, nine hundred ninety-eight".

Divisors: 1 2 3 6 7 9 14 18 19 21 38 42 49 57 63 98 114 126 133 147 171 266 294 342 399 441 798 882 931 1197 1862 2394 2793 5586 8379 16758 168781 337562 506343 1012686 1181467 1519029 2362934 3038058 3206839 3544401 6413678 7088802 8270269 9620517 10633203 16540538 19241034 21266406 22447873 24810807 28861551 44895746 49621614 57723102 67343619 74432421 134687238 148864842 157135111 202030857 314270222 404061714 471405333 942810666 1414215999 2828431998