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2618225 = 52104729
BaseRepresentation
bin1001111111001101110001
311221000112022
421333031301
51132240400
6132041225
731153211
oct11771561
94830468
102618225
111529125
12a63215
1370895c
144c2241
1536ab85
hex27f371

2618225 has 6 divisors (see below), whose sum is σ = 3246630. Its totient is φ = 2094560.

The previous prime is 2618197. The next prime is 2618237. The reversal of 2618225 is 5228162.

It can be written as a sum of positive squares in 3 ways, for example, as 790321 + 1827904 = 889^2 + 1352^2 .

It is not a de Polignac number, because 2618225 - 220 = 1569649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2618194 and 2618203.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52340 + ... + 52389.

It is an arithmetic number, because the mean of its divisors is an integer number (541105).

22618225 is an apocalyptic number.

2618225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2618225 is a deficient number, since it is larger than the sum of its proper divisors (628405).

2618225 is a wasteful number, since it uses less digits than its factorization.

2618225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104739 (or 104734 counting only the distinct ones).

The product of its digits is 1920, while the sum is 26.

The square root of 2618225 is about 1618.0930133957. The cubic root of 2618225 is about 137.8274290400.

The spelling of 2618225 in words is "two million, six hundred eighteen thousand, two hundred twenty-five".

Divisors: 1 5 25 104729 523645 2618225