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28382983785 = 3251371683351
BaseRepresentation
bin11010011011110000…
…011111011001101001
32201021001120222010200
4122123300133121221
5431112020440120
621012225502413
72023233244602
oct323360373151
981231528120
1028382983785
11110454aa8a2
1256014a1a09
1328a4382080
1415337a4da9
15b11bb7e90
hex69bc1f669

28382983785 has 48 divisors (see below), whose sum is σ = 53727867648. Its totient is φ = 13776336000.

The previous prime is 28382983771. The next prime is 28382983793. The reversal of 28382983785 is 58738928382.

It is not a de Polignac number, because 28382983785 - 28 = 28382983529 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 300141 + ... + 383210.

It is an arithmetic number, because the mean of its divisors is an integer number (1119330576).

Almost surely, 228382983785 is an apocalyptic number.

It is an amenable number.

28382983785 is a deficient number, since it is larger than the sum of its proper divisors (25344883863).

28382983785 is a wasteful number, since it uses less digits than its factorization.

28382983785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683446 (or 683443 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 63.

The spelling of 28382983785 in words is "twenty-eight billion, three hundred eighty-two million, nine hundred eighty-three thousand, seven hundred eighty-five".

Divisors: 1 3 5 9 13 15 39 45 65 71 117 195 213 355 585 639 923 1065 2769 3195 4615 8307 13845 41535 683351 2050053 3416755 6150159 8883563 10250265 26650689 30750795 44417815 48517921 79952067 133253445 145553763 242589605 399760335 436661289 630732973 727768815 1892198919 2183306445 3153664865 5676596757 9460994595 28382983785