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28714308838 = 272191988801
BaseRepresentation
bin11010101111100000…
…011001010011100110
32202010011001000122221
4122233200121103212
5432301330340323
621105143142554
72034365412055
oct325740312346
982104030587
1028714308838
11111a552a256
125694444a5a
132927bc9cb7
1415657b039c
15b30d1355d
hex6af8194e6

28714308838 has 8 divisors (see below), whose sum is σ = 43077451320. Its totient is φ = 14355158400.

The previous prime is 28714308817. The next prime is 28714308869. The reversal of 28714308838 is 83880341782.

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

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, 979963 + ... + 1008838.

It is an arithmetic number, because the mean of its divisors is an integer number (5384681415).

Almost surely, 228714308838 is an apocalyptic number.

28714308838 is a deficient number, since it is larger than the sum of its proper divisors (14363142482).

28714308838 is a wasteful number, since it uses less digits than its factorization.

28714308838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996022.

The product of its (nonzero) digits is 2064384, while the sum is 52.

The spelling of 28714308838 in words is "twenty-eight billion, seven hundred fourteen million, three hundred eight thousand, eight hundred thirty-eight".

Divisors: 1 2 7219 14438 1988801 3977602 14357154419 28714308838