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228948383 = 435324381
BaseRepresentation
bin11011010010101…
…11100110011111
3120221210210010202
431221113212133
5432102322013
634415054115
75450012666
oct1551274637
9527723122
10228948383
11108265344
126481133b
1338581721
1422599ddd
1515176858
hexda5799f

228948383 has 4 divisors (see below), whose sum is σ = 234272808. Its totient is φ = 223623960.

The previous prime is 228948331. The next prime is 228948389. The reversal of 228948383 is 383849822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 228948383 - 26 = 228948319 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228948389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2662148 + ... + 2662233.

It is an arithmetic number, because the mean of its divisors is an integer number (58568202).

Almost surely, 2228948383 is an apocalyptic number.

228948383 is a deficient number, since it is larger than the sum of its proper divisors (5324425).

228948383 is an equidigital number, since it uses as much as digits as its factorization.

228948383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5324424.

The product of its digits is 663552, while the sum is 47.

The square root of 228948383 is about 15131.0403806216. The cubic root of 228948383 is about 611.7573466307.

The spelling of 228948383 in words is "two hundred twenty-eight million, nine hundred forty-eight thousand, three hundred eighty-three".

Divisors: 1 43 5324381 228948383