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28047841008 = 24311103515737
BaseRepresentation
bin11010000111110010…
…000001011011110000
32200101200221221200020
4122013302001123300
5424420221403013
620515054323440
72012023500135
oct320762013360
980350857606
1028047841008
11109933030a0
1255291b9580
13284cacb535
14150108458c
15ae2566623
hex687c816f0

28047841008 has 80 divisors (see below), whose sum is σ = 79811486976. Its totient is φ = 8416811520.

The previous prime is 28047841007. The next prime is 28047841013. The reversal of 28047841008 is 80014874082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28047841001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203485 + ... + 312252.

Almost surely, 228047841008 is an apocalyptic number.

It is an amenable number.

28047841008 is an abundant number, since it is smaller than the sum of its proper divisors (51763645968).

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

28047841008 is a wasteful number, since it uses less digits than its factorization.

28047841008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515862 (or 515856 counting only the distinct ones).

The product of its (nonzero) digits is 114688, while the sum is 42.

The spelling of 28047841008 in words is "twenty-eight billion, forty-seven million, eight hundred forty-one thousand, eight".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 33 44 48 66 88 103 132 176 206 264 309 412 528 618 824 1133 1236 1648 2266 2472 3399 4532 4944 6798 9064 13596 18128 27192 54384 515737 1031474 1547211 2062948 3094422 4125896 5673107 6188844 8251792 11346214 12377688 17019321 22692428 24755376 34038642 45384856 53120911 68077284 90769712 106241822 136154568 159362733 212483644 272309136 318725466 424967288 584330021 637450932 849934576 1168660042 1274901864 1752990063 2337320084 2549803728 3505980126 4674640168 7011960252 9349280336 14023920504 28047841008