Search a number
-
+
232230121 = 269863309
BaseRepresentation
bin11011101011110…
…00110011101001
3121011222111211121
431311320303221
5433422330441
635013255241
75516631514
oct1565706351
9534874747
10232230121
1110a0a6a22
1265934521
1339160396
1422bb1d7b
15155c3dd1
hexdd78ce9

232230121 has 4 divisors (see below), whose sum is σ = 233093700. Its totient is φ = 231366544.

The previous prime is 232230113. The next prime is 232230139. The reversal of 232230121 is 121032232.

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

It can be written as a sum of positive squares in 2 ways, for example, as 117418896 + 114811225 = 10836^2 + 10715^2 .

It is a cyclic number.

It is not a de Polignac number, because 232230121 - 23 = 232230113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 232230095 and 232230104.

It is not an unprimeable number, because it can be changed into a prime (232230221) 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, 431386 + ... + 431923.

It is an arithmetic number, because the mean of its divisors is an integer number (58273425).

Almost surely, 2232230121 is an apocalyptic number.

It is an amenable number.

232230121 is a deficient number, since it is larger than the sum of its proper divisors (863579).

232230121 is an equidigital number, since it uses as much as digits as its factorization.

232230121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863578.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 232230121 is about 15239.0984313377. The cubic root of 232230121 is about 614.6664602491. Note that the first 3 decimals are identical.

Adding to 232230121 its reverse (121032232), we get a palindrome (353262353).

The spelling of 232230121 in words is "two hundred thirty-two million, two hundred thirty thousand, one hundred twenty-one".

Divisors: 1 269 863309 232230121