Search a number
-
+
230415 = 3515361
BaseRepresentation
bin111000010000001111
3102201001220
4320100033
524333130
64534423
71646523
oct702017
9381056
10230415
11148129
12b1413
1380b53
145dd83
1548410
hex3840f

230415 has 8 divisors (see below), whose sum is σ = 368688. Its totient is φ = 122880.

The previous prime is 230393. The next prime is 230431. The reversal of 230415 is 514032.

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

It is not a de Polignac number, because 230415 - 25 = 230383 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 15361 = 230415 / (2 + 3 + 0 + 4 + 1 + 5).

It is a junction number, because it is equal to n+sod(n) for n = 230394 and 230403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7666 + ... + 7695.

It is an arithmetic number, because the mean of its divisors is an integer number (46086).

2230415 is an apocalyptic number.

230415 is a deficient number, since it is larger than the sum of its proper divisors (138273).

230415 is a wasteful number, since it uses less digits than its factorization.

230415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15369.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 230415 is about 480.0156247457. The cubic root of 230415 is about 61.3060849609.

Subtracting from 230415 its sum of digits (15), we obtain a square (230400 = 4802).

Adding to 230415 its reverse (514032), we get a palindrome (744447).

The spelling of 230415 in words is "two hundred thirty thousand, four hundred fifteen".

Divisors: 1 3 5 15 15361 46083 76805 230415