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513229 = 2571997
BaseRepresentation
bin1111101010011001101
3222002000111
41331103031
5112410404
615000021
74235203
oct1752315
9862014
10513229
11320662
12209011
1314c7b2
14d5073
15a2104
hex7d4cd

513229 has 4 divisors (see below), whose sum is σ = 515484. Its totient is φ = 510976.

The previous prime is 513203. The next prime is 513239. The reversal of 513229 is 922315.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 922315 = 5184463.

It can be written as a sum of positive squares in 2 ways, for example, as 265225 + 248004 = 515^2 + 498^2 .

It is a cyclic number.

It is not a de Polignac number, because 513229 - 27 = 513101 is a prime.

It is an Ulam number.

It is a Duffinian number.

513229 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 742 + ... + 1255.

It is an arithmetic number, because the mean of its divisors is an integer number (128871).

2513229 is an apocalyptic number.

It is an amenable number.

513229 is a deficient number, since it is larger than the sum of its proper divisors (2255).

513229 is a wasteful number, since it uses less digits than its factorization.

513229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2254.

The product of its digits is 540, while the sum is 22.

The square root of 513229 is about 716.4000279174. The cubic root of 513229 is about 80.0639592682.

The spelling of 513229 in words is "five hundred thirteen thousand, two hundred twenty-nine".

Divisors: 1 257 1997 513229