Search a number
-
+
2846720 = 2125139
BaseRepresentation
bin1010110111000000000000
312100121222002
422313000000
51212043340
6141003132
733124322
oct12670000
95317862
102846720
111674868
12b534a8
13788966
14541612
153b3715
hex2b7000

2846720 has 52 divisors (see below), whose sum is σ = 6880440. Its totient is φ = 1130496.

The previous prime is 2846719. The next prime is 2846731. The reversal of 2846720 is 276482.

2846720 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 20411 + ... + 20549.

22846720 is an apocalyptic number.

2846720 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 2846720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3440220).

2846720 is an abundant number, since it is smaller than the sum of its proper divisors (4033720).

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

2846720 is an equidigital number, since it uses as much as digits as its factorization.

2846720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 2846720 is about 1687.2225697874. Note that the first 3 decimals coincide. The cubic root of 2846720 is about 141.7255825690.

The spelling of 2846720 in words is "two million, eight hundred forty-six thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 139 160 256 278 320 512 556 640 695 1024 1112 1280 1390 2048 2224 2560 2780 4096 4448 5120 5560 8896 10240 11120 17792 20480 22240 35584 44480 71168 88960 142336 177920 284672 355840 569344 711680 1423360 2846720