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228356000 = 255357089
BaseRepresentation
bin11011001110001…
…10111110100000
3120220200200112122
431213012332200
5431424343000
634354243412
75441664635
oct1547067640
9526620478
10228356000
111079a0274
1264586568
1338404bc2
142248418c
15150ab085
hexd9c6fa0

228356000 has 48 divisors (see below), whose sum is σ = 561080520. Its totient is φ = 91340800.

The previous prime is 228355999. The next prime is 228356027. The reversal of 228356000 is 653822.

It can be written as a sum of positive squares in 4 ways, for example, as 59043856 + 169312144 = 7684^2 + 13012^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24545 + ... + 32544.

Almost surely, 2228356000 is an apocalyptic number.

228356000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228356000 is an abundant number, since it is smaller than the sum of its proper divisors (332724520).

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

228356000 is an equidigital number, since it uses as much as digits as its factorization.

228356000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57114 (or 57096 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 228356000 is about 15111.4526105203. The cubic root of 228356000 is about 611.2292688578.

The spelling of 228356000 in words is "two hundred twenty-eight million, three hundred fifty-six thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 500 800 1000 2000 4000 57089 114178 228356 285445 456712 570890 913424 1141780 1427225 1826848 2283560 2854450 4567120 5708900 7136125 9134240 11417800 14272250 22835600 28544500 45671200 57089000 114178000 228356000