Search a number
-
+
230121343 = 1168919687
BaseRepresentation
bin11011011011101…
…01111101111111
3121001000101010201
431231311331333
5432402340333
634500144331
75462666464
oct1555657577
9531011121
10230121343
11108996631
12650980a7
13388a259a
14227c366b
151530917d
hexdb75f7f

230121343 has 4 divisors (see below), whose sum is σ = 230152720. Its totient is φ = 230089968.

The previous prime is 230121323. The next prime is 230121347. The reversal of 230121343 is 343121032.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 230121343 - 29 = 230120831 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 230121343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230121347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1846 + ... + 21532.

It is an arithmetic number, because the mean of its divisors is an integer number (57538180).

Almost surely, 2230121343 is an apocalyptic number.

230121343 is a deficient number, since it is larger than the sum of its proper divisors (31377).

230121343 is a wasteful number, since it uses less digits than its factorization.

230121343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31376.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 230121343 is about 15169.7509208293. The cubic root of 230121343 is about 612.8002963397.

Adding to 230121343 its reverse (343121032), we get a palindrome (573242375).

The spelling of 230121343 in words is "two hundred thirty million, one hundred twenty-one thousand, three hundred forty-three".

Divisors: 1 11689 19687 230121343