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2284720 = 24528559
BaseRepresentation
bin1000101101110010110000
311022002001021
420231302300
51041102340
6120545224
725263664
oct10556260
94262037
102284720
1113205a9
12922214
1361cc09
144368a4
15301e4a
hex22dcb0

2284720 has 20 divisors (see below), whose sum is σ = 5312160. Its totient is φ = 913856.

The previous prime is 2284703. The next prime is 2284757. The reversal of 2284720 is 274822.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14200 + ... + 14359.

It is an arithmetic number, because the mean of its divisors is an integer number (265608).

22284720 is an apocalyptic number.

2284720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2284720 is an abundant number, since it is smaller than the sum of its proper divisors (3027440).

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

2284720 is a wasteful number, since it uses less digits than its factorization.

2284720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28572 (or 28566 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 2284720 is about 1511.5290271774. The cubic root of 2284720 is about 131.7076480525.

The spelling of 2284720 in words is "two million, two hundred eighty-four thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 28559 57118 114236 142795 228472 285590 456944 571180 1142360 2284720