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28577450083 = 731314943013
BaseRepresentation
bin11010100111010110…
…010100100001100011
32201202121111212202011
4122213112110201203
5432011311400313
621043413533351
72031114214000
oct324726244143
981677455664
1028577450083
1111135253246
125656644257
13290574c6a0
1415515468a7
15b23ccc93d
hex6a7594863

28577450083 has 32 divisors (see below), whose sum is σ = 36131760000. Its totient is φ = 22458457728.

The previous prime is 28577450053. The next prime is 28577450089. The reversal of 28577450083 is 38005477582.

It is not a de Polignac number, because 28577450083 - 25 = 28577450051 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (28577450089) 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 31 ways as a sum of consecutive naturals, for example, 642885 + ... + 685897.

It is an arithmetic number, because the mean of its divisors is an integer number (1129117500).

Almost surely, 228577450083 is an apocalyptic number.

28577450083 is a deficient number, since it is larger than the sum of its proper divisors (7554309917).

28577450083 is a wasteful number, since it uses less digits than its factorization.

28577450083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43196 (or 43182 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 49.

The spelling of 28577450083 in words is "twenty-eight billion, five hundred seventy-seven million, four hundred fifty thousand, eighty-three".

Divisors: 1 7 13 49 91 149 343 637 1043 1937 4459 7301 13559 43013 51107 94913 301091 559169 664391 2107637 3914183 6408937 14753459 27399281 44862559 83316181 191794967 314037913 583213267 2198265391 4082492869 28577450083