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230033005 = 523286969
BaseRepresentation
bin11011011011000…
…00011001101101
3121000211212221221
431231200121231
5432342024010
634454223341
75462151106
oct1555403155
9530755857
10230033005
11108936224
1265054b51
1338871307
142279d3ad
15152dcdda
hexdb6066d

230033005 has 12 divisors (see below), whose sum is σ = 288566460. Its totient is φ = 176023232.

The previous prime is 230032991. The next prime is 230033021. The reversal of 230033005 is 500330032.

It can be written as a sum of positive squares in 2 ways, for example, as 25371369 + 204661636 = 5037^2 + 14306^2 .

It is not a de Polignac number, because 230033005 - 217 = 229901933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 230033005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40840 + ... + 46129.

It is an arithmetic number, because the mean of its divisors is an integer number (24047205).

Almost surely, 2230033005 is an apocalyptic number.

It is an amenable number.

230033005 is a deficient number, since it is larger than the sum of its proper divisors (58533455).

230033005 is an equidigital number, since it uses as much as digits as its factorization.

230033005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87020 (or 86997 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 16.

The square root of 230033005 is about 15166.8389916950. The cubic root of 230033005 is about 612.7218732489.

Adding to 230033005 its reverse (500330032), we get a palindrome (730363037).

The spelling of 230033005 in words is "two hundred thirty million, thirty-three thousand, five".

Divisors: 1 5 23 115 529 2645 86969 434845 2000287 10001435 46006601 230033005