Search a number
-
+
230122211 = 1120920201
BaseRepresentation
bin11011011011101…
…10001011100011
3121001000102022212
431231312023203
5432402402321
634500152335
75463002144
oct1555661343
9531012285
10230122211
11108997250
12650986ab
13388a2ab7
14227c3acb
151530955b
hexdb762e3

230122211 has 4 divisors (see below), whose sum is σ = 251042424. Its totient is φ = 209202000.

The previous prime is 230122187. The next prime is 230122213. The reversal of 230122211 is 112221032.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-230122211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230122213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10460090 + ... + 10460111.

It is an arithmetic number, because the mean of its divisors is an integer number (62760606).

Almost surely, 2230122211 is an apocalyptic number.

230122211 is a deficient number, since it is larger than the sum of its proper divisors (20920213).

230122211 is a wasteful number, since it uses less digits than its factorization.

230122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20920212.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 230122211 is about 15169.7795303689. The cubic root of 230122211 is about 612.8010668172.

Adding to 230122211 its reverse (112221032), we get a palindrome (342343243).

The spelling of 230122211 in words is "two hundred thirty million, one hundred twenty-two thousand, two hundred eleven".

Divisors: 1 11 20920201 230122211