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28286757112 = 23471074991409
BaseRepresentation
bin11010010110000001…
…011010100011111000
32201000100112010221211
4122112001122203320
5430412402211422
620554511212504
72020654316425
oct322601324370
981010463854
1028286757112
1110aa6156319
125595217134
13288a45cc03
141524ab6d4c
15b0850b577
hex69605a8f8

28286757112 has 64 divisors (see below), whose sum is σ = 54820800000. Its totient is φ = 13675892736.

The previous prime is 28286757101. The next prime is 28286757173. The reversal of 28286757112 is 21175768282.

It is a happy number.

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, 20075064 + ... + 20076472.

It is an arithmetic number, because the mean of its divisors is an integer number (856575000).

Almost surely, 228286757112 is an apocalyptic number.

It is an amenable number.

28286757112 is a deficient number, since it is larger than the sum of its proper divisors (26534042888).

28286757112 is a wasteful number, since it uses less digits than its factorization.

28286757112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2068 (or 2064 counting only the distinct ones).

The product of its digits is 752640, while the sum is 49.

The spelling of 28286757112 in words is "twenty-eight billion, two hundred eighty-six million, seven hundred fifty-seven thousand, one hundred twelve".

Divisors: 1 2 4 8 47 94 107 188 214 376 428 499 856 998 1409 1996 2818 3992 5029 5636 10058 11272 20116 23453 40232 46906 53393 66223 93812 106786 132446 150763 187624 213572 264892 301526 427144 529784 603052 703091 1206104 1406182 2509471 2812364 5018942 5624728 7085861 10037884 14171722 20075768 28343444 33045277 56686888 66090554 75230737 132181108 150461474 264362216 300922948 601845896 3535844639 7071689278 14143378556 28286757112