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228898571 = 1168330467
BaseRepresentation
bin11011010010010…
…11011100001011
3120221201020210212
431221023130023
5432044223241
634414031335
75446414526
oct1551133413
9527636725
10228898571
11108230980
12647a854b
1338564b55
1422585bbd
1515166beb
hexda4b70b

228898571 has 8 divisors (see below), whose sum is σ = 250081344. Its totient is φ = 207778120.

The previous prime is 228898561. The next prime is 228898597. The reversal of 228898571 is 175898822.

It is a happy number.

228898571 is nontrivially palindromic in base 9.

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

It is not a de Polignac number, because 228898571 - 226 = 161789707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228898561) 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, 7721 + ... + 22746.

It is an arithmetic number, because the mean of its divisors is an integer number (31260168).

Almost surely, 2228898571 is an apocalyptic number.

228898571 is a deficient number, since it is larger than the sum of its proper divisors (21182773).

228898571 is a wasteful number, since it uses less digits than its factorization.

228898571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31161.

The product of its digits is 645120, while the sum is 50.

The square root of 228898571 is about 15129.3942707565. The cubic root of 228898571 is about 611.7129769977.

The spelling of 228898571 in words is "two hundred twenty-eight million, eight hundred ninety-eight thousand, five hundred seventy-one".

Divisors: 1 11 683 7513 30467 335137 20808961 228898571