[go: up one dir, main page]

Search a number
-
+
2528680 = 235711821
BaseRepresentation
bin1001101001010110101000
311202110200211
421221112220
51121404210
6130110504
730331150
oct11512650
94673624
102528680
111477920
12a1b434
136a6c7b
1449b760
1534e38a
hex2695a8

2528680 has 64 divisors (see below), whose sum is σ = 7102080. Its totient is φ = 787200.

The previous prime is 2528663. The next prime is 2528707. The reversal of 2528680 is 868252.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2670 + ... + 3490.

It is an arithmetic number, because the mean of its divisors is an integer number (110970).

22528680 is an apocalyptic number.

2528680 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 2528680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3551040).

2528680 is an abundant number, since it is smaller than the sum of its proper divisors (4573400).

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

2528680 is a wasteful number, since it uses less digits than its factorization.

2528680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850 (or 846 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 2528680 is about 1590.1823794773. The cubic root of 2528680 is about 136.2379053877.

The spelling of 2528680 in words is "two million, five hundred twenty-eight thousand, six hundred eighty".

Divisors: 1 2 4 5 7 8 10 11 14 20 22 28 35 40 44 55 56 70 77 88 110 140 154 220 280 308 385 440 616 770 821 1540 1642 3080 3284 4105 5747 6568 8210 9031 11494 16420 18062 22988 28735 32840 36124 45155 45976 57470 63217 72248 90310 114940 126434 180620 229880 252868 316085 361240 505736 632170 1264340 2528680