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230342215 = 5291588567
BaseRepresentation
bin11011011101010…
…11111001000111
3121001102121010011
431232223321013
5432431422330
634505011051
75464606435
oct1556537107
9531377104
10230342215
11109027574
1265183a87
133894bc8c
142283dd55
151534e82a
hexdbabe47

230342215 has 8 divisors (see below), whose sum is σ = 285942240. Its totient is φ = 177919392.

The previous prime is 230342213. The next prime is 230342221. The reversal of 230342215 is 512243032.

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 230342215 - 21 = 230342213 is a prime.

It is a super-2 number, since 2×2303422152 = 106115072022212450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230342213) 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, 794139 + ... + 794428.

It is an arithmetic number, because the mean of its divisors is an integer number (35742780).

Almost surely, 2230342215 is an apocalyptic number.

230342215 is a deficient number, since it is larger than the sum of its proper divisors (55600025).

230342215 is a wasteful number, since it uses less digits than its factorization.

230342215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1588601.

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

The square root of 230342215 is about 15177.0291888762. The cubic root of 230342215 is about 612.9962902516.

Adding to 230342215 its reverse (512243032), we get a palindrome (742585247).

The spelling of 230342215 in words is "two hundred thirty million, three hundred forty-two thousand, two hundred fifteen".

Divisors: 1 5 29 145 1588567 7942835 46068443 230342215