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230605653 = 3743103457
BaseRepresentation
bin11011011111011…
…00001101010101
3121001220222111010
431233230031111
5433013340103
634514402433
75500054455
oct1557541525
9531828433
10230605653
11109197493
1265290419
1338a11b65
14228abd65
15153a2903
hexdbec355

230605653 has 8 divisors (see below), whose sum is σ = 307891008. Its totient is φ = 153528704.

The previous prime is 230605643. The next prime is 230605673. The reversal of 230605653 is 356506032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 230605653 - 212 = 230601557 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 230605653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230605643) 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 7 ways as a sum of consecutive naturals, for example, 49500 + ... + 53957.

It is an arithmetic number, because the mean of its divisors is an integer number (38486376).

Almost surely, 2230605653 is an apocalyptic number.

It is an amenable number.

230605653 is a deficient number, since it is larger than the sum of its proper divisors (77285355).

230605653 is a wasteful number, since it uses less digits than its factorization.

230605653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104203.

The product of its (nonzero) digits is 16200, while the sum is 30.

The square root of 230605653 is about 15185.7055483109. The cubic root of 230605653 is about 613.2298919426.

The spelling of 230605653 in words is "two hundred thirty million, six hundred five thousand, six hundred fifty-three".

Divisors: 1 3 743 2229 103457 310371 76868551 230605653