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228534800 = 24521371619
BaseRepresentation
bin11011001111100…
…10101000010000
3120221000202210212
431213302220100
5432001103200
634402143252
75443341134
oct1547625020
9527022725
10228534800
1110800263a
1264651b28
13384683c0
14224cd3c4
15150e4035
hexd9f2a10

228534800 has 120 divisors (see below), whose sum is σ = 600586560. Its totient is φ = 83059200.

The previous prime is 228534737. The next prime is 228534811. The reversal of 228534800 is 8435822.

It is a super-2 number, since 2×2285348002 = 104456309622080000, 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 23 ways as a sum of consecutive naturals, for example, 368891 + ... + 369509.

It is an arithmetic number, because the mean of its divisors is an integer number (5004888).

Almost surely, 2228534800 is an apocalyptic number.

228534800 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 228534800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300293280).

228534800 is an abundant number, since it is smaller than the sum of its proper divisors (372051760).

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

228534800 is a wasteful number, since it uses less digits than its factorization.

228534800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721 (or 710 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 228534800 is about 15117.3674956984. The cubic root of 228534800 is about 611.3887556270.

The spelling of 228534800 in words is "two hundred twenty-eight million, five hundred thirty-four thousand, eight hundred".

Divisors: 1 2 4 5 8 10 13 16 20 25 26 40 50 52 65 71 80 100 104 130 142 200 208 260 284 325 355 400 520 568 619 650 710 923 1040 1136 1238 1300 1420 1775 1846 2476 2600 2840 3095 3550 3692 4615 4952 5200 5680 6190 7100 7384 8047 9230 9904 12380 14200 14768 15475 16094 18460 23075 24760 28400 30950 32188 36920 40235 43949 46150 49520 61900 64376 73840 80470 87898 92300 123800 128752 160940 175796 184600 201175 219745 247600 321880 351592 369200 402350 439490 571337 643760 703184 804700 878980 1098725 1142674 1609400 1757960 2197450 2285348 2856685 3218800 3515920 4394900 4570696 5713370 8789800 9141392 11426740 14283425 17579600 22853480 28566850 45706960 57133700 114267400 228534800