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7225713 = 331124329
BaseRepresentation
bin11011100100000101110001
3111121002211000
4123210011301
53322210323
6414512213
7115263135
oct33440561
914532730
107225713
114095870
122505669
13165cb91
14d613c5
1597ae43
hex6e4171

7225713 has 16 divisors (see below), whose sum is σ = 11678400. Its totient is φ = 4379040.

The previous prime is 7225711. The next prime is 7225723. The reversal of 7225713 is 3175227.

It is not a de Polignac number, because 7225713 - 21 = 7225711 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a d-powerful number, because it can be written as 77 + 215 + 219 + 57 + 78 + 1 + 37 .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7225711) 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 15 ways as a sum of consecutive naturals, for example, 11868 + ... + 12461.

It is an arithmetic number, because the mean of its divisors is an integer number (729900).

Almost surely, 27225713 is an apocalyptic number.

It is an amenable number.

7225713 is a deficient number, since it is larger than the sum of its proper divisors (4452687).

7225713 is a wasteful number, since it uses less digits than its factorization.

7225713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24349 (or 24343 counting only the distinct ones).

The product of its digits is 2940, while the sum is 27.

The square root of 7225713 is about 2688.0686375165. The cubic root of 7225713 is about 193.3274707563.

The spelling of 7225713 in words is "seven million, two hundred twenty-five thousand, seven hundred thirteen".

Divisors: 1 3 9 11 27 33 99 297 24329 72987 218961 267619 656883 802857 2408571 7225713