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28849200 = 2435229829
BaseRepresentation
bin110111000001…
…1010000110000
32000021200122220
41232003100300
524341133300
62510201040
7500133312
oct156032060
960250586
1028849200
1115314916
1297b3180
135c91243
143b8d7b2
1527ecda0
hex1b83430

28849200 has 120 divisors (see below), whose sum is σ = 95715600. Its totient is φ = 7418880.

The previous prime is 28849181. The next prime is 28849241. The reversal of 28849200 is 294882.

It is a tau number, because it is divible by the number of its divisors (120).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34386 + ... + 35214.

It is an arithmetic number, because the mean of its divisors is an integer number (797630).

Almost surely, 228849200 is an apocalyptic number.

28849200 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 28849200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47857800).

28849200 is an abundant number, since it is smaller than the sum of its proper divisors (66866400).

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

28849200 is a wasteful number, since it uses less digits than its factorization.

28849200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879 (or 868 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 28849200 is about 5371.1451292997. The cubic root of 28849200 is about 306.6982219157.

The spelling of 28849200 in words is "twenty-eight million, eight hundred forty-nine thousand, two hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 29 30 40 48 50 58 60 75 80 87 100 116 120 145 150 174 200 232 240 290 300 348 400 435 464 580 600 696 725 829 870 1160 1200 1392 1450 1658 1740 2175 2320 2487 2900 3316 3480 4145 4350 4974 5800 6632 6960 8290 8700 9948 11600 12435 13264 16580 17400 19896 20725 24041 24870 33160 34800 39792 41450 48082 49740 62175 66320 72123 82900 96164 99480 120205 124350 144246 165800 192328 198960 240410 248700 288492 331600 360615 384656 480820 497400 576984 601025 721230 961640 994800 1153968 1202050 1442460 1803075 1923280 2404100 2884920 3606150 4808200 5769840 7212300 9616400 14424600 28849200