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20283200 = 265271811
BaseRepresentation
bin100110101011…
…1111101000000
31102011111022122
41031113331000
520143030300
62002423412
7334255460
oct115277500
942144278
1020283200
11104a4083
126961b68
1342822c2
14299dba0
151ba9c85
hex1357f40

20283200 has 84 divisors (see below), whose sum is σ = 57070752. Its totient is φ = 6950400.

The previous prime is 20283199. The next prime is 20283223. The reversal of 20283200 is 238202.

It is a super-2 number, since 2×202832002 = 822816404480000, which contains 22 as substring.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 10295 + ... + 12105.

Almost surely, 220283200 is an apocalyptic number.

20283200 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 20283200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28535376).

20283200 is an abundant number, since it is smaller than the sum of its proper divisors (36787552).

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

20283200 is a wasteful number, since it uses less digits than its factorization.

20283200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1840 (or 1825 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 20283200 is about 4503.6873781381. The cubic root of 20283200 is about 272.7169666139.

The spelling of 20283200 in words is "twenty million, two hundred eighty-three thousand, two hundred".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 32 35 40 50 56 64 70 80 100 112 140 160 175 200 224 280 320 350 400 448 560 700 800 1120 1400 1600 1811 2240 2800 3622 5600 7244 9055 11200 12677 14488 18110 25354 28976 36220 45275 50708 57952 63385 72440 90550 101416 115904 126770 144880 181100 202832 253540 289760 316925 362200 405664 507080 579520 633850 724400 811328 1014160 1267700 1448800 2028320 2535400 2897600 4056640 5070800 10141600 20283200