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228969300 = 2235271071019
BaseRepresentation
bin11011010010111…
…00101101010100
3120221211211211110
431221130231110
5432104004200
634415335020
75450130660
oct1551345524
9527754743
10228969300
1110827a02a
1264821470
133858b0c1
14225a38a0
151517cb50
hexda5cb54

228969300 has 144 divisors (see below), whose sum is σ = 764951040. Its totient is φ = 51795840.

The previous prime is 228969269. The next prime is 228969319. The reversal of 228969300 is 3969822.

228969300 is a nontrivial binomial coefficient, being equal to C(21400, 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 224191 + ... + 225209.

It is an arithmetic number, because the mean of its divisors is an integer number (5312160).

Almost surely, 2228969300 is an apocalyptic number.

228969300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

228969300 is the 21399-th triangular number and also the 10700-th hexagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228969300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (382475520).

228969300 is an abundant number, since it is smaller than the sum of its proper divisors (535981740).

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

228969300 is a wasteful number, since it uses less digits than its factorization.

228969300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150 (or 1143 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 228969300 is about 15131.7315598711. The cubic root of 228969300 is about 611.7759763594.

It can be divided in two parts, 228 and 969300, that added together give a triangular number (969528 = T1392).

The spelling of 228969300 in words is "two hundred twenty-eight million, nine hundred sixty-nine thousand, three hundred".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 25 28 30 35 42 50 60 70 75 84 100 105 107 140 150 175 210 214 300 321 350 420 428 525 535 642 700 749 1019 1050 1070 1284 1498 1605 2038 2100 2140 2247 2675 2996 3057 3210 3745 4076 4494 5095 5350 6114 6420 7133 7490 8025 8988 10190 10700 11235 12228 14266 14980 15285 16050 18725 20380 21399 22470 25475 28532 30570 32100 35665 37450 42798 44940 50950 56175 61140 71330 74900 76425 85596 101900 106995 109033 112350 142660 152850 178325 213990 218066 224700 305700 327099 356650 427980 436132 534975 545165 654198 713300 763231 1069950 1090330 1308396 1526462 1635495 2139900 2180660 2289693 2725825 3052924 3270990 3816155 4579386 5451650 6541980 7632310 8177475 9158772 10903300 11448465 15264620 16354950 19080775 22896930 32709900 38161550 45793860 57242325 76323100 114484650 228969300