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27857304274304 = 2717157145156197
BaseRepresentation
bin1100101010110000010001…
…01110011100010110000000
310122122010120102122222022102
412111120020232130112000
512122403224343234204
6135125245141325532
75603423653260221
oct625301056342600
9118563512588272
1027857304274304
11897024202a55a
12315ab22a068a8
131270c17997b3b
146c442d26d248
153349745db41e
hex195608b9c580

27857304274304 has 128 divisors (see below), whose sum is σ = 59177586489120. Its totient is φ = 13016612044800.

The previous prime is 27857304274273. The next prime is 27857304274313. The reversal of 27857304274304 is 40347240375872.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 27857304274304.

It is a congruent number.

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, 495679934 + ... + 495736130.

Almost surely, 227857304274304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27857304274304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29588793244560).

27857304274304 is an abundant number, since it is smaller than the sum of its proper divisors (31320282214816).

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

27857304274304 is a wasteful number, since it uses less digits than its factorization.

27857304274304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57836 (or 57824 counting only the distinct ones).

The product of its (nonzero) digits is 31610880, while the sum is 56.

The spelling of 27857304274304 in words is "twenty-seven trillion, eight hundred fifty-seven billion, three hundred four million, two hundred seventy-four thousand, three hundred four".

Divisors: 1 2 4 8 16 17 32 34 64 68 128 136 157 272 314 544 628 1088 1256 1451 2176 2512 2669 2902 5024 5338 5804 10048 10676 11608 20096 21352 23216 24667 42704 46432 49334 56197 85408 92864 98668 112394 170816 185728 197336 224788 227807 341632 394672 449576 455614 789344 899152 911228 955349 1578688 1798304 1822456 1910698 3157376 3596608 3644912 3821396 3872719 7193216 7289824 7642792 7745438 8822929 14579648 15285584 15490876 17645858 29159296 30571168 30981752 35291716 61142336 61963504 70583432 81541847 122284672 123927008 141166864 149989793 163083694 247854016 282333728 299979586 326167388 495708032 564667456 599959172 652334776 1129334912 1199918344 1304669552 1386211399 2399836688 2609339104 2772422798 4799673376 5218678208 5544845596 9599346752 10437356416 11089691192 12802069979 19198693504 22179382384 25604139958 44358764768 51208279916 88717529536 102416559832 177435059072 204833119664 217635189643 409666239328 435270379286 819332478656 870540758572 1638664957312 1741081517144 3482163034288 6964326068576 13928652137152 27857304274304