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230345221 = 319776603
BaseRepresentation
bin11011011101011…
…00101000000101
3121001102202020111
431232230220011
5432432021341
634505033021
75464621261
oct1556545005
9531382214
10230345221
11109029857
1265185771
1338950462
14228410a1
1515350681
hexdbaca05

230345221 has 8 divisors (see below), whose sum is σ = 240230144. Its totient is φ = 220613760.

The previous prime is 230345201. The next prime is 230345233. The reversal of 230345221 is 122543032.

230345221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 230345221 - 219 = 229820933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230345192 and 230345201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230345201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35295 + ... + 41308.

It is an arithmetic number, because the mean of its divisors is an integer number (30028768).

Almost surely, 2230345221 is an apocalyptic number.

It is an amenable number.

230345221 is a deficient number, since it is larger than the sum of its proper divisors (9884923).

230345221 is an equidigital number, since it uses as much as digits as its factorization.

230345221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76731.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 230345221 is about 15177.1282197918. The cubic root of 230345221 is about 612.9989568041.

Adding to 230345221 its reverse (122543032), we get a palindrome (352888253).

It can be divided in two parts, 2303 and 45221, that added together give a square (47524 = 2182).

The spelling of 230345221 in words is "two hundred thirty million, three hundred forty-five thousand, two hundred twenty-one".

Divisors: 1 31 97 3007 76603 2374693 7430491 230345221