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228608085 = 3515240539
BaseRepresentation
bin11011010000001…
…00100001010101
3120221011111100010
431220010201111
5432010424320
634403510433
75444064606
oct1550044125
9527144303
10228608085
11108052702
1264688419
1338492874
142250bdad
151510aae0
hexda04855

228608085 has 8 divisors (see below), whose sum is σ = 365772960. Its totient is φ = 121924304.

The previous prime is 228608077. The next prime is 228608099. The reversal of 228608085 is 580806822.

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

It is a cyclic number.

It is not a de Polignac number, because 228608085 - 23 = 228608077 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7620255 + ... + 7620284.

It is an arithmetic number, because the mean of its divisors is an integer number (45721620).

Almost surely, 2228608085 is an apocalyptic number.

It is an amenable number.

228608085 is a deficient number, since it is larger than the sum of its proper divisors (137164875).

228608085 is a wasteful number, since it uses less digits than its factorization.

228608085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15240547.

The product of its (nonzero) digits is 61440, while the sum is 39.

The square root of 228608085 is about 15119.7911691928. The cubic root of 228608085 is about 611.4541006517.

The spelling of 228608085 in words is "two hundred twenty-eight million, six hundred eight thousand, eighty-five".

Divisors: 1 3 5 15 15240539 45721617 76202695 228608085