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338425 = 5213537
BaseRepresentation
bin1010010100111111001
3122012020021
41102213321
541312200
611130441
72606443
oct1224771
9565207
10338425
1121129a
12143a21
13bb069
148b493
156a41a
hex529f9

338425 has 6 divisors (see below), whose sum is σ = 419678. Its totient is φ = 270720.

The previous prime is 338423. The next prime is 338431. The reversal of 338425 is 524833.

338425 = T55 + T56 + ... + T129.

It can be written as a sum of positive squares in 3 ways, for example, as 97344 + 241081 = 312^2 + 491^2 .

It is not a de Polignac number, because 338425 - 21 = 338423 is a prime.

It is a super-2 number, since 2×3384252 = 229062961250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 13537 = 338425 / (3 + 3 + 8 + 4 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 338425.

It is not an unprimeable number, because it can be changed into a prime (338423) 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, 6744 + ... + 6793.

2338425 is an apocalyptic number.

It is an amenable number.

338425 is a deficient number, since it is larger than the sum of its proper divisors (81253).

338425 is a wasteful number, since it uses less digits than its factorization.

338425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13547 (or 13542 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 338425 is about 581.7430704357. The cubic root of 338425 is about 69.6873814405.

The spelling of 338425 in words is "three hundred thirty-eight thousand, four hundred twenty-five".

Divisors: 1 5 25 13537 67685 338425