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230004013 = 409562357
BaseRepresentation
bin11011011010110…
…01010100101101
3121000210102012011
431231121110231
5432340112023
634453441221
75462000431
oct1555312455
9530712164
10230004013
11108916468
1265040211
1338861065
14227929c1
15152d450d
hexdb5952d

230004013 has 4 divisors (see below), whose sum is σ = 230566780. Its totient is φ = 229441248.

The previous prime is 230004011. The next prime is 230004029. The reversal of 230004013 is 310400032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 160731684 + 69272329 = 12678^2 + 8323^2 .

It is a cyclic number.

It is not a de Polignac number, because 230004013 - 21 = 230004011 is a prime.

It is a super-2 number, since 2×2300040132 = 105803691992208338, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230003984 and 230004002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230004011) 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, 280770 + ... + 281587.

It is an arithmetic number, because the mean of its divisors is an integer number (57641695).

Almost surely, 2230004013 is an apocalyptic number.

It is an amenable number.

230004013 is a deficient number, since it is larger than the sum of its proper divisors (562767).

230004013 is an equidigital number, since it uses as much as digits as its factorization.

230004013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562766.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 230004013 is about 15165.8831922180. The cubic root of 230004013 is about 612.6961308866.

Adding to 230004013 its reverse (310400032), we get a palindrome (540404045).

The spelling of 230004013 in words is "two hundred thirty million, four thousand, thirteen".

Divisors: 1 409 562357 230004013