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228323605 = 567681563
BaseRepresentation
bin11011001101111…
…11000100010101
3120220122001002211
431212333010111
5431422323410
634353433421
75441501326
oct1546770425
9526561084
10228323605
111079789a4
126456b871
13383c3233
142247644d
15150a168a
hexd9bf115

228323605 has 8 divisors (see below), whose sum is σ = 278078112. Its totient is φ = 179932368.

The previous prime is 228323597. The next prime is 228323609. The reversal of 228323605 is 506323822.

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 228323605 - 23 = 228323597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228323609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340447 + ... + 341116.

It is an arithmetic number, because the mean of its divisors is an integer number (34759764).

Almost surely, 2228323605 is an apocalyptic number.

It is an amenable number.

228323605 is a deficient number, since it is larger than the sum of its proper divisors (49754507).

228323605 is an equidigital number, since it uses as much as digits as its factorization.

228323605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681635.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 228323605 is about 15110.3807033443. The cubic root of 228323605 is about 611.2003641234.

The spelling of 228323605 in words is "two hundred twenty-eight million, three hundred twenty-three thousand, six hundred five".

Divisors: 1 5 67 335 681563 3407815 45664721 228323605