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20016464275 = 5217257183259
BaseRepresentation
bin10010101001000100…
…110000000110010011
31220122222111201222201
4102221010300012103
5311443203324100
613110114144031
71306012065463
oct225104600623
956588451881
1020016464275
118541854965
123a67582017
131b6cc20902
14d7c56dba3
157c241e36a
hex4a9130193

20016464275 has 24 divisors (see below), whose sum is σ = 26382842640. Its totient is φ = 15012495360.

The previous prime is 20016464269. The next prime is 20016464341. The reversal of 20016464275 is 57246461002.

It is not a de Polignac number, because 20016464275 - 25 = 20016464243 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17596 + ... + 200854.

It is an arithmetic number, because the mean of its divisors is an integer number (1099285110).

Almost surely, 220016464275 is an apocalyptic number.

20016464275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20016464275 is a deficient number, since it is larger than the sum of its proper divisors (6366378365).

20016464275 is a wasteful number, since it uses less digits than its factorization.

20016464275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183543 (or 183538 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The spelling of 20016464275 in words is "twenty billion, sixteen million, four hundred sixty-four thousand, two hundred seventy-five".

Divisors: 1 5 17 25 85 257 425 1285 4369 6425 21845 109225 183259 916295 3115403 4581475 15577015 47097563 77885075 235487815 800658571 1177439075 4003292855 20016464275