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8128424682 = 234724721787
BaseRepresentation
bin1111001000111110…
…11110101011101010
3202222111001202110000
413210133132223222
5113121334042212
63422324203430
7405300320100
oct74437365352
922874052400
108128424682
1134a1313854
1216aa239576
139c7029861
14571777c70
153289171dc
hex1e47deaea

8128424682 has 120 divisors (see below), whose sum is σ = 21639144384. Its totient is φ = 2272889808.

The previous prime is 8128424671. The next prime is 8128424699. The reversal of 8128424682 is 2864248218.

It is a super-2 number, since 2×81284246822 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 362193 + ... + 383979.

Almost surely, 28128424682 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8128424682, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10819572192).

8128424682 is an abundant number, since it is smaller than the sum of its proper divisors (13510719702).

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

8128424682 is a wasteful number, since it uses less digits than its factorization.

8128424682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21862 (or 21846 counting only the distinct ones).

The product of its digits is 393216, while the sum is 45.

The square root of 8128424682 is about 90157.7766030197. The cubic root of 8128424682 is about 2010.6452951498.

The spelling of 8128424682 in words is "eight billion, one hundred twenty-eight million, four hundred twenty-four thousand, six hundred eighty-two".

Divisors: 1 2 3 6 7 9 14 18 21 27 42 47 49 54 63 81 94 98 126 141 147 162 189 282 294 329 378 423 441 567 658 846 882 987 1134 1269 1323 1974 2303 2538 2646 2961 3807 3969 4606 5922 6909 7614 7938 8883 13818 17766 20727 21787 26649 41454 43574 53298 62181 65361 124362 130722 152509 186543 196083 305018 373086 392166 457527 588249 915054 1023989 1067563 1176498 1372581 1764747 2047978 2135126 2745162 3071967 3202689 3529494 4117743 6143934 6405378 7167923 8235486 9215901 9608067 12353229 14335846 18431802 19216134 21503769 24706458 27647703 28824201 43007538 50175461 55295406 57648402 64511307 82943109 86472603 100350922 129022614 150526383 165886218 172945206 193533921 301052766 387067842 451579149 580601763 903158298 1161203526 1354737447 2709474894 4064212341 8128424682