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230941549 = 1713584797
BaseRepresentation
bin11011100001111…
…10001101101101
3121002120001020201
431300332031231
5433110112144
634525513501
75502653656
oct1560761555
9532501221
10230941549
111093a6893
1265412891
1338acba07
142295852d
151541c1d4
hexdc3e36d

230941549 has 4 divisors (see below), whose sum is σ = 244526364. Its totient is φ = 217356736.

The previous prime is 230941541. The next prime is 230941567. The reversal of 230941549 is 945149032.

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 191628649 + 39312900 = 13843^2 + 6270^2 .

It is a cyclic number.

It is not a de Polignac number, because 230941549 - 23 = 230941541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230941541) 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, 6792382 + ... + 6792415.

It is an arithmetic number, because the mean of its divisors is an integer number (61131591).

Almost surely, 2230941549 is an apocalyptic number.

It is an amenable number.

230941549 is a deficient number, since it is larger than the sum of its proper divisors (13584815).

230941549 is a wasteful number, since it uses less digits than its factorization.

230941549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13584814.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 230941549 is about 15196.7611351893. The cubic root of 230941549 is about 613.5274873345.

The spelling of 230941549 in words is "two hundred thirty million, nine hundred forty-one thousand, five hundred forty-nine".

Divisors: 1 17 13584797 230941549