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253329 = 384443
BaseRepresentation
bin111101110110010001
3110212111120
4331312101
531101304
65232453
72103366
oct756621
9425446
10253329
1116336a
12102729
138b3cb
146846d
15500d9
hex3dd91

253329 has 4 divisors (see below), whose sum is σ = 337776. Its totient is φ = 168884.

The previous prime is 253321. The next prime is 253343. The reversal of 253329 is 923352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 253329 - 23 = 253321 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 253299 and 253308.

It is not an unprimeable number, because it can be changed into a prime (253321) 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 3 ways as a sum of consecutive naturals, for example, 42219 + ... + 42224.

It is an arithmetic number, because the mean of its divisors is an integer number (84444).

2253329 is an apocalyptic number.

It is an amenable number.

253329 is a deficient number, since it is larger than the sum of its proper divisors (84447).

253329 is an equidigital number, since it uses as much as digits as its factorization.

253329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84446.

The product of its digits is 1620, while the sum is 24.

The square root of 253329 is about 503.3179909361. The cubic root of 253329 is about 63.2744389408.

The spelling of 253329 in words is "two hundred fifty-three thousand, three hundred twenty-nine".

Divisors: 1 3 84443 253329