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2723225 = 52108929
BaseRepresentation
bin1010011000110110011001
312010100120012
422120312121
51144120400
6134211305
732101301
oct12306631
95110505
102723225
11159aaaa
12ab3b35
1374469b
1450c601
1538bd35
hex298d99

2723225 has 6 divisors (see below), whose sum is σ = 3376830. Its totient is φ = 2178560.

The previous prime is 2723221. The next prime is 2723239. The reversal of 2723225 is 5223272.

2723225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 85849 + 2637376 = 293^2 + 1624^2 .

It is not a de Polignac number, because 2723225 - 22 = 2723221 is a prime.

It is a Curzon number.

It is a plaindrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 2723225.

It is not an unprimeable number, because it can be changed into a prime (2723221) 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 5 ways as a sum of consecutive naturals, for example, 54440 + ... + 54489.

It is an arithmetic number, because the mean of its divisors is an integer number (562805).

22723225 is an apocalyptic number.

2723225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2723225 is a deficient number, since it is larger than the sum of its proper divisors (653605).

2723225 is a wasteful number, since it uses less digits than its factorization.

2723225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108939 (or 108934 counting only the distinct ones).

The product of its digits is 1680, while the sum is 23.

The square root of 2723225 is about 1650.2196823454. The cubic root of 2723225 is about 139.6457882438.

Adding to 2723225 its reverse (5223272), we get a palindrome (7946497).

The spelling of 2723225 in words is "two million, seven hundred twenty-three thousand, two hundred twenty-five".

Divisors: 1 5 25 108929 544645 2723225