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230220413 = 343367061
BaseRepresentation
bin11011011100011…
…10001001111101
3121001012102000222
431232032021331
5432414023123
634502231125
75463561353
oct1556161175
9531172028
10230220413
11108a54005
12651254a5
13389086c7
142280b7d3
15153286c8
hexdb8e27d

230220413 has 4 divisors (see below), whose sum is σ = 230290908. Its totient is φ = 230149920.

The previous prime is 230220407. The next prime is 230220421. The reversal of 230220413 is 314022032.

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 76510009 + 153710404 = 8747^2 + 12398^2 .

It is a cyclic number.

It is not a de Polignac number, because 230220413 - 26 = 230220349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230220391 and 230220400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230220433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30098 + ... + 36963.

It is an arithmetic number, because the mean of its divisors is an integer number (57572727).

Almost surely, 2230220413 is an apocalyptic number.

It is an amenable number.

230220413 is a deficient number, since it is larger than the sum of its proper divisors (70495).

230220413 is an equidigital number, since it uses as much as digits as its factorization.

230220413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70494.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 230220413 is about 15173.0159493754. The cubic root of 230220413 is about 612.8882230171. Note that the first 3 decimals are identical.

Adding to 230220413 its reverse (314022032), we get a palindrome (544242445).

The spelling of 230220413 in words is "two hundred thirty million, two hundred twenty thousand, four hundred thirteen".

Divisors: 1 3433 67061 230220413