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3001680 = 2432511379
BaseRepresentation
bin1011011100110101010000
312122111112100
423130311100
51232023210
6144200400
734341153
oct13346520
95574470
103001680
111770230
121009100
13811356
14581c9a
153e45c0
hex2dcd50

3001680 has 120 divisors (see below), whose sum is σ = 11026080. Its totient is φ = 725760.

The previous prime is 3001657. The next prime is 3001681. The reversal of 3001680 is 861003.

3001680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3001681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7731 + ... + 8109.

It is an arithmetic number, because the mean of its divisors is an integer number (91884).

Almost surely, 23001680 is an apocalyptic number.

3001680 is a gapful number since it is divisible by the number (30) 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 3001680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5513040).

3001680 is an abundant number, since it is smaller than the sum of its proper divisors (8024400).

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

3001680 is a wasteful number, since it uses less digits than its factorization.

3001680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409 (or 400 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 3001680 is about 1732.5357139176. The cubic root of 3001680 is about 144.2518739988.

Adding to 3001680 its reverse (861003), we get a palindrome (3862683).

The spelling of 3001680 in words is "three million, one thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 30 33 36 40 44 45 48 55 60 66 72 80 88 90 99 110 120 132 144 165 176 180 198 220 240 264 330 360 379 396 440 495 528 660 720 758 792 880 990 1137 1320 1516 1584 1895 1980 2274 2640 3032 3411 3790 3960 4169 4548 5685 6064 6822 7580 7920 8338 9096 11370 12507 13644 15160 16676 17055 18192 20845 22740 25014 27288 30320 33352 34110 37521 41690 45480 50028 54576 62535 66704 68220 75042 83380 90960 100056 125070 136440 150084 166760 187605 200112 250140 272880 300168 333520 375210 500280 600336 750420 1000560 1500840 3001680