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230839551 = 35949957
BaseRepresentation
bin11011100001001…
…01010011111111
3121002100212100000
431300211103333
5433043331201
634523405343
75502050415
oct1560452377
9532325300
10230839551
11109337198
1265383853
1338a94467
142292d2b5
15153ebd86
hexdc254ff

230839551 has 12 divisors (see below), whose sum is σ = 345784712. Its totient is φ = 153892872.

The previous prime is 230839541. The next prime is 230839561. The reversal of 230839551 is 155938032.

230839551 is a `hidden beast` number, since 23 + 0 + 83 + 9 + 551 = 666.

It is an interprime number because it is at equal distance from previous prime (230839541) and next prime (230839561).

It is not a de Polignac number, because 230839551 - 26 = 230839487 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 (230839541) 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 11 ways as a sum of consecutive naturals, for example, 474736 + ... + 475221.

Almost surely, 2230839551 is an apocalyptic number.

230839551 is a deficient number, since it is larger than the sum of its proper divisors (114945161).

230839551 is an frugal number, since it uses more digits than its factorization.

230839551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949972 (or 949960 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 230839551 is about 15193.4048521061. The cubic root of 230839551 is about 613.4371502022.

The spelling of 230839551 in words is "two hundred thirty million, eight hundred thirty-nine thousand, five hundred fifty-one".

Divisors: 1 3 9 27 81 243 949957 2849871 8549613 25648839 76946517 230839551