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2826880 = 2757631
BaseRepresentation
bin1010110010001010000000
312022121202021
422302022000
51210430010
6140331224
733012430
oct12621200
95277667
102826880
111660971
12b43b14
1377c914
145382c0
153ac8da
hex2b2280

2826880 has 64 divisors (see below), whose sum is σ = 7735680. Its totient is φ = 967680.

The previous prime is 2826853. The next prime is 2826883. The reversal of 2826880 is 886282.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (2826883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4165 + ... + 4795.

It is an arithmetic number, because the mean of its divisors is an integer number (120870).

22826880 is an apocalyptic number.

2826880 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 2826880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3867840).

2826880 is an abundant number, since it is smaller than the sum of its proper divisors (4908800).

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

2826880 is an equidigital number, since it uses as much as digits as its factorization.

2826880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657 (or 645 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 2826880 is about 1681.3328046523. The cubic root of 2826880 is about 141.3955661220.

The spelling of 2826880 in words is "two million, eight hundred twenty-six thousand, eight hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 80 112 128 140 160 224 280 320 448 560 631 640 896 1120 1262 2240 2524 3155 4417 4480 5048 6310 8834 10096 12620 17668 20192 22085 25240 35336 40384 44170 50480 70672 80768 88340 100960 141344 176680 201920 282688 353360 403840 565376 706720 1413440 2826880