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230003513 = 751306263
BaseRepresentation
bin11011011010110…
…01001100111001
3121000210101111122
431231121030321
5432340103023
634453435025
75461666115
oct1555311471
9530711448
10230003513
11108916053
126503ba75
1338860a6c
1422792745
15152d42c8
hexdb59339

230003513 has 4 divisors (see below), whose sum is σ = 230310528. Its totient is φ = 229696500.

The previous prime is 230003497. The next prime is 230003533. The reversal of 230003513 is 315300032.

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 230003513 - 24 = 230003497 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230003491 and 230003500.

It is not an unprimeable number, because it can be changed into a prime (230003533) 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, 152381 + ... + 153882.

It is an arithmetic number, because the mean of its divisors is an integer number (57577632).

Almost surely, 2230003513 is an apocalyptic number.

It is an amenable number.

230003513 is a deficient number, since it is larger than the sum of its proper divisors (307015).

230003513 is an equidigital number, since it uses as much as digits as its factorization.

230003513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307014.

The product of its (nonzero) digits is 270, while the sum is 17.

The square root of 230003513 is about 15165.8667078410. The cubic root of 230003513 is about 612.6956869113.

Adding to 230003513 its reverse (315300032), we get a palindrome (545303545).

The spelling of 230003513 in words is "two hundred thirty million, three thousand, five hundred thirteen".

Divisors: 1 751 306263 230003513