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228808260 = 223351929769
BaseRepresentation
bin11011010001101…
…01011001000100
3120221112122221000
431220311121010
5432033331020
634412053300
75445560322
oct1550653104
9527478830
10228808260
1110817a03a
1264764230
1338532a05
1422560d12
151514a090
hexda35644

228808260 has 192 divisors, whose sum is σ = 776160000. Its totient is φ = 55738368.

The previous prime is 228808199. The next prime is 228808273. The reversal of 228808260 is 62808822.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 297156 + ... + 297924.

It is an arithmetic number, because the mean of its divisors is an integer number (4042500).

Almost surely, 2228808260 is an apocalyptic number.

228808260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228808260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (388080000).

228808260 is an abundant number, since it is smaller than the sum of its proper divisors (547351740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228808260 is a wasteful number, since it uses less digits than its factorization.

228808260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835 (or 827 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 228808260 is about 15126.4093558253. The cubic root of 228808260 is about 611.6325167929.

The spelling of 228808260 in words is "two hundred twenty-eight million, eight hundred eight thousand, two hundred sixty".