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228050687 = 271983873
BaseRepresentation
bin11011001011111…
…00011011111111
3120220010011201202
431211330123333
5431340110222
634343530115
75436253544
oct1545743377
9526104652
10228050687
11107801947
126445993b
1338328c47
1422404bcb
151504a892
hexd97c6ff

228050687 has 4 divisors (see below), whose sum is σ = 228137280. Its totient is φ = 227964096.

The previous prime is 228050671. The next prime is 228050689. The reversal of 228050687 is 786050822.

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 228050687 - 24 = 228050671 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 228050687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228050689) 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, 39218 + ... + 44655.

It is an arithmetic number, because the mean of its divisors is an integer number (57034320).

Almost surely, 2228050687 is an apocalyptic number.

228050687 is a deficient number, since it is larger than the sum of its proper divisors (86593).

228050687 is an equidigital number, since it uses as much as digits as its factorization.

228050687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86592.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 228050687 is about 15101.3471915588. The cubic root of 228050687 is about 610.9567419371.

The spelling of 228050687 in words is "two hundred twenty-eight million, fifty thousand, six hundred eighty-seven".

Divisors: 1 2719 83873 228050687