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28030084423 = 116765358243
BaseRepresentation
bin11010000110101110…
…010010010101000111
32200100110112211012221
4122012232102111013
5424401200200143
620513221553211
72011416533515
oct320656222507
980313484187
1028030084423
1110984285330
125523275807
132849222293
1414dc9814b5
15ae0c0a2ed
hex686b92547

28030084423 has 16 divisors (see below), whose sum is σ = 31082726016. Its totient is φ = 25062697440.

The previous prime is 28030084409. The next prime is 28030084573. The reversal of 28030084423 is 32448003082.

It is not a de Polignac number, because 28030084423 - 229 = 27493213511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28030084223) 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 15 ways as a sum of consecutive naturals, for example, 452140 + ... + 510382.

It is an arithmetic number, because the mean of its divisors is an integer number (1942670376).

Almost surely, 228030084423 is an apocalyptic number.

28030084423 is a deficient number, since it is larger than the sum of its proper divisors (3052641593).

28030084423 is a wasteful number, since it uses less digits than its factorization.

28030084423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58974.

The product of its (nonzero) digits is 36864, while the sum is 34.

The spelling of 28030084423 in words is "twenty-eight billion, thirty million, eighty-four thousand, four hundred twenty-three".

Divisors: 1 11 67 653 737 7183 43751 58243 481261 640673 3902281 38032679 42925091 418359469 2548189493 28030084423