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230011865 = 546002373
BaseRepresentation
bin11011011010110…
…11001111011001
3121000210210221222
431231123033121
5432340334430
634453541425
75462032346
oct1555331731
9530723858
10230011865
11108921356
1265044875
13388647c5
14227957cd
15152d69e5
hexdb5b3d9

230011865 has 4 divisors (see below), whose sum is σ = 276014244. Its totient is φ = 184009488.

The previous prime is 230011829. The next prime is 230011877. The reversal of 230011865 is 568110032.

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 168922009 + 61089856 = 12997^2 + 7816^2 .

It is a cyclic number.

It is not a de Polignac number, because 230011865 - 210 = 230010841 is a prime.

It is a Duffinian number.

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, 23001182 + ... + 23001191.

It is an arithmetic number, because the mean of its divisors is an integer number (69003561).

Almost surely, 2230011865 is an apocalyptic number.

It is an amenable number.

230011865 is a deficient number, since it is larger than the sum of its proper divisors (46002379).

230011865 is an equidigital number, since it uses as much as digits as its factorization.

230011865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46002378.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 230011865 is about 15166.1420605242. The cubic root of 230011865 is about 612.7031029900.

Adding to 230011865 its reverse (568110032), we get a palindrome (798121897).

The spelling of 230011865 in words is "two hundred thirty million, eleven thousand, eight hundred sixty-five".

Divisors: 1 5 46002373 230011865