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28055850043 = 132166010947
BaseRepresentation
bin11010001000010000…
…100100110000111011
32200102021000212000011
4122020100210300323
5424424244200133
620515542122351
72012151535114
oct321020446073
980367025004
1028055850043
1110997883431
12552ba203b7
132851673b00
14150216b20b
15ae30e96cd
hex688424c3b

28055850043 has 6 divisors (see below), whose sum is σ = 30380003484. Its totient is φ = 25897707576.

The previous prime is 28055850037. The next prime is 28055850059. The reversal of 28055850043 is 34005855082.

It is not a de Polignac number, because 28055850043 - 221 = 28053752891 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28055849978 and 28055850005.

It is not an unprimeable number, because it can be changed into a prime (28055850343) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 83005305 + ... + 83005642.

It is an arithmetic number, because the mean of its divisors is an integer number (5063333914).

Almost surely, 228055850043 is an apocalyptic number.

28055850043 is a deficient number, since it is larger than the sum of its proper divisors (2324153441).

28055850043 is a wasteful number, since it uses less digits than its factorization.

28055850043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166010973 (or 166010960 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 40.

The spelling of 28055850043 in words is "twenty-eight billion, fifty-five million, eight hundred fifty thousand, forty-three".

Divisors: 1 13 169 166010947 2158142311 28055850043