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230415231 = 3137560621
BaseRepresentation
bin11011011101111…
…01101101111111
3121001120022021110
431232331231333
5432441241411
634510333103
75465332344
oct1556755577
9531508243
10230415231
11109077412
12651ba193
1338976297
142285c7cb
15153662a6
hexdbbdb7f

230415231 has 8 divisors (see below), whose sum is σ = 309463344. Its totient is φ = 152488640.

The previous prime is 230415217. The next prime is 230415233. The reversal of 230415231 is 132514032.

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 230415231 - 26 = 230415167 is a prime.

It is a super-2 number, since 2×2304152312 = 106182357353566722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 230415198 and 230415207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230415233) 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, 279900 + ... + 280721.

It is an arithmetic number, because the mean of its divisors is an integer number (38682918).

Almost surely, 2230415231 is an apocalyptic number.

230415231 is a deficient number, since it is larger than the sum of its proper divisors (79048113).

230415231 is a wasteful number, since it uses less digits than its factorization.

230415231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560761.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 230415231 is about 15179.4344756318. The cubic root of 230415231 is about 613.0610544817.

Adding to 230415231 its reverse (132514032), we get a palindrome (362929263).

The spelling of 230415231 in words is "two hundred thirty million, four hundred fifteen thousand, two hundred thirty-one".

Divisors: 1 3 137 411 560621 1681863 76805077 230415231