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BaseRepresentation
bin11011001100001…
…11011111111111
3120220012110212222
431212013133333
5431343032444
634344515555
75436532625
oct1546073777
9526173788
10228095999
1110783299a
126447bbbb
1338343761
1422417515
1515058eee
hexd9877ff

228095999 has 4 divisors (see below), whose sum is σ = 229005000. Its totient is φ = 227187000.

The previous prime is 228095983. The next prime is 228096013. The reversal of 228095999 is 999590822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 228095999 - 24 = 228095983 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 228095999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228095099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454124 + ... + 454625.

It is an arithmetic number, because the mean of its divisors is an integer number (57251250).

Almost surely, 2228095999 is an apocalyptic number.

228095999 is a deficient number, since it is larger than the sum of its proper divisors (909001).

228095999 is an equidigital number, since it uses as much as digits as its factorization.

228095999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909000.

The product of its (nonzero) digits is 1049760, while the sum is 53.

The square root of 228095999 is about 15102.8473805438. The cubic root of 228095999 is about 610.9972034662.

The spelling of 228095999 in words is "two hundred twenty-eight million, ninety-five thousand, nine hundred ninety-nine".

Divisors: 1 251 908749 228095999