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28090011195 = 335643323599
BaseRepresentation
bin11010001010010010…
…111000111000111011
32200111122022102022000
4122022102320320323
5430012020324240
620523202232043
72013045104241
oct321222707073
980448272260
1028090011195
1110a05096194
12553b355623
132858774acc
141506900791
15ae60e6430
hex68a4b8e3b

28090011195 has 32 divisors (see below), whose sum is σ = 50015616000. Its totient is φ = 14957993952.

The previous prime is 28090011181. The next prime is 28090011197. The reversal of 28090011195 is 59111009082.

It is not a de Polignac number, because 28090011195 - 216 = 28089945659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28090011197) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74995 + ... + 248604.

It is an arithmetic number, because the mean of its divisors is an integer number (1562988000).

Almost surely, 228090011195 is an apocalyptic number.

28090011195 is a deficient number, since it is larger than the sum of its proper divisors (21925604805).

28090011195 is a wasteful number, since it uses less digits than its factorization.

28090011195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324256 (or 324250 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 36.

The spelling of 28090011195 in words is "twenty-eight billion, ninety million, eleven thousand, one hundred ninety-five".

Divisors: 1 3 5 9 15 27 45 135 643 1929 3215 5787 9645 17361 28935 86805 323599 970797 1617995 2912391 4853985 8737173 14561955 43685865 208074157 624222471 1040370785 1872667413 3121112355 5618002239 9363337065 28090011195