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28173808302 = 234695634717
BaseRepresentation
bin11010001111010010…
…100011001010101110
32200201110222202022120
4122033102203022232
5430144443331202
620535354253410
72015113263543
oct321722431256
980643882276
1028173808302
1110a484201a2
125563427266
13286cc345b3
141513ab4bca
15aed64a0bc
hex68f4a32ae

28173808302 has 8 divisors (see below), whose sum is σ = 56347616616. Its totient is φ = 9391269432.

The previous prime is 28173808261. The next prime is 28173808367. The reversal of 28173808302 is 20380837182.

It is a sphenic number, since it is the product of 3 distinct primes.

28173808302 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2347817353 + ... + 2347817364.

It is an arithmetic number, because the mean of its divisors is an integer number (7043452077).

Almost surely, 228173808302 is an apocalyptic number.

28173808302 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28173808302 is a wasteful number, since it uses less digits than its factorization.

28173808302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4695634722.

The product of its (nonzero) digits is 129024, while the sum is 42.

The spelling of 28173808302 in words is "twenty-eight billion, one hundred seventy-three million, eight hundred eight thousand, three hundred two".

Divisors: 1 2 3 6 4695634717 9391269434 14086904151 28173808302