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228492529 = 1721116367
BaseRepresentation
bin11011001111010…
…00010011110001
3120220221121211021
431213220103301
5431443230104
634401215441
75443103656
oct1547502361
9526847737
10228492529
11107a83901
1264631581
13384520a5
14224bbc2d
15150d6754
hexd9e84f1

228492529 has 8 divisors (see below), whose sum is σ = 242085888. Its totient is φ = 214916160.

The previous prime is 228492527. The next prime is 228492547. The reversal of 228492529 is 925294822.

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 228492529 - 21 = 228492527 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228492527) 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, 32704 + ... + 39070.

It is an arithmetic number, because the mean of its divisors is an integer number (30260736).

Almost surely, 2228492529 is an apocalyptic number.

It is an amenable number.

228492529 is a deficient number, since it is larger than the sum of its proper divisors (13593359).

228492529 is a wasteful number, since it uses less digits than its factorization.

228492529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8495.

The product of its digits is 207360, while the sum is 43.

The square root of 228492529 is about 15115.9693370951. The cubic root of 228492529 is about 611.3510580747.

The spelling of 228492529 in words is "two hundred twenty-eight million, four hundred ninety-two thousand, five hundred twenty-nine".

Divisors: 1 17 2111 6367 35887 108239 13440737 228492529