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228996200 = 23521144981
BaseRepresentation
bin11011010011000…
…11010001101000
3120221220012201202
431221203101220
5432110334300
634420103332
75450302256
oct1551432150
9527805652
10228996200
11108298264
1264834b48
133859a414
14225ad5d6
1515185ad5
hexda63468

228996200 has 24 divisors (see below), whose sum is σ = 532416630. Its totient is φ = 91598400.

The previous prime is 228996197. The next prime is 228996221. The reversal of 228996200 is 2699822.

It can be written as a sum of positive squares in 3 ways, for example, as 223861444 + 5134756 = 14962^2 + 2266^2 .

It is a super-2 number, since 2×2289962002 = 104878519228880000, which contains 22 as substring.

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 5 ways as a sum of consecutive naturals, for example, 572291 + ... + 572690.

Almost surely, 2228996200 is an apocalyptic number.

228996200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228996200 is an abundant number, since it is smaller than the sum of its proper divisors (303420430).

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

228996200 is a wasteful number, since it uses less digits than its factorization.

228996200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144997 (or 1144988 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 228996200 is about 15132.6203943666. The cubic root of 228996200 is about 611.7999331800.

It can be divided in two parts, 2289 and 96200, that added together give a palindrome (98489).

The spelling of 228996200 in words is "two hundred twenty-eight million, nine hundred ninety-six thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 1144981 2289962 4579924 5724905 9159848 11449810 22899620 28624525 45799240 57249050 114498100 228996200