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230041215 = 345677839
BaseRepresentation
bin11011011011000…
…10011001111111
3121000212022020000
431231202121333
5432342304330
634454325343
75462214045
oct1555423177
9530768200
10230041215
11108941408
1265059853
1338874c81
14227a2395
15152e0560
hexdb6267f

230041215 has 40 divisors (see below), whose sum is σ = 413471520. Its totient is φ = 122361408.

The previous prime is 230041213. The next prime is 230041243. The reversal of 230041215 is 512140032.

It is not a de Polignac number, because 230041215 - 21 = 230041213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230041211) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 273766 + ... + 274604.

It is an arithmetic number, because the mean of its divisors is an integer number (10336788).

Almost surely, 2230041215 is an apocalyptic number.

230041215 is a deficient number, since it is larger than the sum of its proper divisors (183430305).

230041215 is an equidigital number, since it uses as much as digits as its factorization.

230041215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533 (or 1524 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 230041215 is about 15167.1096455455. The cubic root of 230041215 is about 612.7291626184.

Adding to 230041215 its reverse (512140032), we get a palindrome (742181247).

The spelling of 230041215 in words is "two hundred thirty million, forty-one thousand, two hundred fifteen".

Divisors: 1 3 5 9 15 27 45 81 135 405 677 839 2031 2517 3385 4195 6093 7551 10155 12585 18279 22653 30465 37755 54837 67959 91395 113265 274185 339795 568003 1704009 2840015 5112027 8520045 15336081 25560135 46008243 76680405 230041215