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230616565 = 51072231933
BaseRepresentation
bin11011011111011…
…10110111110101
3121001221112110021
431233232313311
5433014212230
634514525141
75500131334
oct1557566765
9531845407
10230616565
111091a4703
12652967b1
1338a16b0a
14228b1d1b
15153a5c7a
hexdbeedf5

230616565 has 16 divisors (see below), whose sum is σ = 280723968. Its totient is φ = 181855296.

The previous prime is 230616559. The next prime is 230616569. The reversal of 230616565 is 565616032.

It is a cyclic number.

It is not a de Polignac number, because 230616565 - 23 = 230616557 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 230616565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230616569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118339 + ... + 120271.

It is an arithmetic number, because the mean of its divisors is an integer number (17545248).

Almost surely, 2230616565 is an apocalyptic number.

It is an amenable number.

230616565 is a deficient number, since it is larger than the sum of its proper divisors (50107403).

230616565 is a wasteful number, since it uses less digits than its factorization.

230616565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2268.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 230616565 is about 15186.0648293098. The cubic root of 230616565 is about 613.2395642395.

The spelling of 230616565 in words is "two hundred thirty million, six hundred sixteen thousand, five hundred sixty-five".

Divisors: 1 5 107 223 535 1115 1933 9665 23861 119305 206831 431059 1034155 2155295 46123313 230616565