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343225 = 5213729
BaseRepresentation
bin1010011110010111001
3122102211001
41103302321
541440400
611205001
72626441
oct1236271
9572731
10343225
11214963
12146761
13c02bc
148d121
156ba6a
hex53cb9

343225 has 6 divisors (see below), whose sum is σ = 425630. Its totient is φ = 274560.

The previous prime is 343219. The next prime is 343237. The reversal of 343225 is 522343.

It can be written as a sum of positive squares in 3 ways, for example, as 11449 + 331776 = 107^2 + 576^2 .

It is not a de Polignac number, because 343225 - 25 = 343193 is a prime.

It is a d-powerful number, because it can be written as 36 + 49 + 23 + 37 + 25 + 57 .

343225 is a lucky number.

It is an unprimeable number.

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, 6840 + ... + 6889.

2343225 is an apocalyptic number.

It is an amenable number.

343225 is a deficient number, since it is larger than the sum of its proper divisors (82405).

343225 is a wasteful number, since it uses less digits than its factorization.

343225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13739 (or 13734 counting only the distinct ones).

The product of its digits is 720, while the sum is 19.

The square root of 343225 is about 585.8540773947. The cubic root of 343225 is about 70.0153027768.

Subtracting from 343225 its sum of digits (19), we obtain a triangular number (343206 = T828).

Adding to 343225 its reverse (522343), we get a palindrome (865568).

The spelling of 343225 in words is "three hundred forty-three thousand, two hundred twenty-five".

Divisors: 1 5 25 13729 68645 343225