Search a number
-
+
2788473 = 36713873
BaseRepresentation
bin1010101000110001111001
312020200001210
422220301321
51203212343
6135433333
732462442
oct12506171
95220053
102788473
111635026
12b25849
137682ac
145282c9
153a1333
hex2a8c79

2788473 has 8 divisors (see below), whose sum is σ = 3773728. Its totient is φ = 1831104.

The previous prime is 2788469. The next prime is 2788483. The reversal of 2788473 is 3748872.

2788473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2788473 - 22 = 2788469 is a prime.

It is a d-powerful number, because it can be written as 220 + 76 + 84 + 86 + 45 + 77 + 312 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2788403) 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 7 ways as a sum of consecutive naturals, for example, 6736 + ... + 7137.

It is an arithmetic number, because the mean of its divisors is an integer number (471716).

22788473 is an apocalyptic number.

It is an amenable number.

2788473 is a deficient number, since it is larger than the sum of its proper divisors (985255).

2788473 is a wasteful number, since it uses less digits than its factorization.

2788473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13943.

The product of its digits is 75264, while the sum is 39.

The square root of 2788473 is about 1669.8721507948. The cubic root of 2788473 is about 140.7522938252.

The spelling of 2788473 in words is "two million, seven hundred eighty-eight thousand, four hundred seventy-three".

Divisors: 1 3 67 201 13873 41619 929491 2788473