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28605775046 = 2317216120879
BaseRepresentation
bin11010101001000010…
…010111110011000110
32201211120210221021212
4122221002113303012
5432041034300141
621050305011422
72031610035032
oct325102276306
981746727255
1028605775046
111114a23a202
125664023b72
13290b589114
1415551db1c2
15b265252eb
hex6a9097cc6

28605775046 has 16 divisors (see below), whose sum is σ = 43066002240. Its totient is φ = 14250487680.

The previous prime is 28605775031. The next prime is 28605775049. The reversal of 28605775046 is 64057750682.

It is a junction number, because it is equal to n+sod(n) for n = 28605774985 and 28605775003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28605775049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1359635 + ... + 1380513.

It is an arithmetic number, because the mean of its divisors is an integer number (2691625140).

Almost surely, 228605775046 is an apocalyptic number.

28605775046 is a deficient number, since it is larger than the sum of its proper divisors (14460227194).

28605775046 is a wasteful number, since it uses less digits than its factorization.

28605775046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23359.

The product of its (nonzero) digits is 2822400, while the sum is 50.

The spelling of 28605775046 in words is "twenty-eight billion, six hundred five million, seven hundred seventy-five thousand, forty-six".

Divisors: 1 2 317 634 2161 4322 20879 41758 685037 1370074 6618643 13237286 45119519 90239038 14302887523 28605775046