Search a number
-
+
230345545 = 546069109
BaseRepresentation
bin11011011101011…
…00101101001001
3121001102202200111
431232230231021
5432432024140
634505034321
75464622233
oct1556545511
9531382614
10230345545
1110902a021
12651859a1
1338950651
1422841253
15153507ea
hexdbacb49

230345545 has 4 divisors (see below), whose sum is σ = 276414660. Its totient is φ = 184276432.

The previous prime is 230345527. The next prime is 230345551. The reversal of 230345545 is 545543032.

It is a happy number.

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 97081609 + 133263936 = 9853^2 + 11544^2 .

It is a cyclic number.

It is not a de Polignac number, because 230345545 - 213 = 230337353 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23034550 + ... + 23034559.

It is an arithmetic number, because the mean of its divisors is an integer number (69103665).

Almost surely, 2230345545 is an apocalyptic number.

It is an amenable number.

230345545 is a deficient number, since it is larger than the sum of its proper divisors (46069115).

230345545 is an equidigital number, since it uses as much as digits as its factorization.

230345545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46069114.

The product of its (nonzero) digits is 36000, while the sum is 31.

The square root of 230345545 is about 15177.1388937441. The cubic root of 230345545 is about 612.9992442156. Note that the first 3 decimals are identical.

Adding to 230345545 its reverse (545543032), we get a palindrome (775888577).

The spelling of 230345545 in words is "two hundred thirty million, three hundred forty-five thousand, five hundred forty-five".

Divisors: 1 5 46069109 230345545