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228000535 = 577389237
BaseRepresentation
bin11011001011100…
…00001100010111
3120220000121221021
431211300030113
5431332004120
634342502011
75435654410
oct1545601427
9526017837
10228000535
111077781a4
1264434907
133830c179
14223d0807
151503aaaa
hexd970317

228000535 has 16 divisors (see below), whose sum is σ = 316973376. Its totient is φ = 154199808.

The previous prime is 228000533. The next prime is 228000559. The reversal of 228000535 is 535000822.

228000535 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 228000535 - 21 = 228000533 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 (228000533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42064 + ... + 47173.

It is an arithmetic number, because the mean of its divisors is an integer number (19810836).

Almost surely, 2228000535 is an apocalyptic number.

228000535 is a deficient number, since it is larger than the sum of its proper divisors (88972841).

228000535 is an equidigital number, since it uses as much as digits as its factorization.

228000535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89322.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 228000535 is about 15099.6865861514. The cubic root of 228000535 is about 610.9119522614.

The spelling of 228000535 in words is "two hundred twenty-eight million, five hundred thirty-five", and thus it is an aban number.

Divisors: 1 5 7 35 73 365 511 2555 89237 446185 624659 3123295 6514301 32571505 45600107 228000535