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228304547 = 7110331219
BaseRepresentation
bin11011001101110…
…10011010100011
3120220121001221222
431212322122203
5431421221142
634353205255
75441361632
oct1546723243
9526531858
10228304547
11107965649
126456082b
13383b7663
142246d519
151509abd2
hexd9ba6a3

228304547 has 8 divisors (see below), whose sum is σ = 233775360. Its totient is φ = 222896520.

The previous prime is 228304529. The next prime is 228304567. The reversal of 228304547 is 745403822.

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 228304547 - 28 = 228304291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228304567) 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, 8297 + ... + 22922.

It is an arithmetic number, because the mean of its divisors is an integer number (29221920).

Almost surely, 2228304547 is an apocalyptic number.

228304547 is a deficient number, since it is larger than the sum of its proper divisors (5470813).

228304547 is a wasteful number, since it uses less digits than its factorization.

228304547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31393.

The product of its (nonzero) digits is 53760, while the sum is 35.

The square root of 228304547 is about 15109.7500641142. The cubic root of 228304547 is about 611.1833581716.

The spelling of 228304547 in words is "two hundred twenty-eight million, three hundred four thousand, five hundred forty-seven".

Divisors: 1 71 103 7313 31219 2216549 3215557 228304547