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22828000 = 255313439
BaseRepresentation
bin101011100010…
…1001111100000
31120221210010111
41113011033200
521320444000
62133141104
7365014636
oct127051740
946853114
1022828000
1111982018
12778a794
1349636c0
143063356
15200dcba
hex15c53e0

22828000 has 96 divisors (see below), whose sum is σ = 60540480. Its totient is φ = 8409600.

The previous prime is 22827989. The next prime is 22828007. The reversal of 22828000 is 82822.

It is a super-2 number, since 2×228280002 = 1042235168000000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22828007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51781 + ... + 52219.

It is an arithmetic number, because the mean of its divisors is an integer number (630630).

Almost surely, 222828000 is an apocalyptic number.

22828000 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 22828000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30270240).

22828000 is an abundant number, since it is smaller than the sum of its proper divisors (37712480).

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

22828000 is a wasteful number, since it uses less digits than its factorization.

22828000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477 (or 459 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 22828000 is about 4777.8656322672. The cubic root of 22828000 is about 283.6760175069.

The spelling of 22828000 in words is "twenty-two million, eight hundred twenty-eight thousand".

Divisors: 1 2 4 5 8 10 13 16 20 25 26 32 40 50 52 65 80 100 104 125 130 160 200 208 250 260 325 400 416 439 500 520 650 800 878 1000 1040 1300 1625 1756 2000 2080 2195 2600 3250 3512 4000 4390 5200 5707 6500 7024 8780 10400 10975 11414 13000 14048 17560 21950 22828 26000 28535 35120 43900 45656 52000 54875 57070 70240 87800 91312 109750 114140 142675 175600 182624 219500 228280 285350 351200 439000 456560 570700 713375 878000 913120 1141400 1426750 1756000 2282800 2853500 4565600 5707000 11414000 22828000