Search a number
-
+
2248771 = 73143241
BaseRepresentation
bin1000100101000001000011
311020020201211
420211001003
51033430041
6120110551
725054120
oct10450103
94206654
102248771
1112a6598
12905457
13609745
14427747
152e6481
hex225043

2248771 has 16 divisors (see below), whose sum is σ = 2725888. Its totient is φ = 1814400.

The previous prime is 2248769. The next prime is 2248781. The reversal of 2248771 is 1778422.

It is not a de Polignac number, because 2248771 - 21 = 2248769 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a d-powerful number, because it can be written as 27 + 221 + 45 + 85 + 72 + 76 + 1 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2248781) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 9211 + ... + 9451.

It is an arithmetic number, because the mean of its divisors is an integer number (170368).

22248771 is an apocalyptic number.

2248771 is a deficient number, since it is larger than the sum of its proper divisors (477117).

2248771 is a wasteful number, since it uses less digits than its factorization.

2248771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322.

The product of its digits is 6272, while the sum is 31.

The square root of 2248771 is about 1499.5902773758. The cubic root of 2248771 is about 131.0132069120.

The spelling of 2248771 in words is "two million, two hundred forty-eight thousand, seven hundred seventy-one".

Divisors: 1 7 31 43 217 241 301 1333 1687 7471 9331 10363 52297 72541 321253 2248771