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230320563 = 31153131687
BaseRepresentation
bin11011011101001…
…10100110110011
3121001101111102020
431232212212303
5432430224223
634504322523
75464456344
oct1556464663
9531344366
10230320563
11109012280
1265173443
1338942175
14228360cb
15153481e3
hexdba69b3

230320563 has 16 divisors (see below), whose sum is σ = 341335296. Its totient is φ = 136953440.

The previous prime is 230320543. The next prime is 230320589. The reversal of 230320563 is 365023032.

It is a cyclic number.

It is not a de Polignac number, because 230320563 - 26 = 230320499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (230320543) 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 15 ways as a sum of consecutive naturals, for example, 64095 + ... + 67592.

It is an arithmetic number, because the mean of its divisors is an integer number (21333456).

Almost surely, 2230320563 is an apocalyptic number.

230320563 is a deficient number, since it is larger than the sum of its proper divisors (111014733).

230320563 is a wasteful number, since it uses less digits than its factorization.

230320563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131754.

The product of its (nonzero) digits is 3240, while the sum is 24.

The square root of 230320563 is about 15176.3158572824. The cubic root of 230320563 is about 612.9770825819.

Adding to 230320563 its reverse (365023032), we get a palindrome (595343595).

The spelling of 230320563 in words is "two hundred thirty million, three hundred twenty thousand, five hundred sixty-three".

Divisors: 1 3 11 33 53 159 583 1749 131687 395061 1448557 4345671 6979411 20938233 76773521 230320563