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230043230 = 2523398731
BaseRepresentation
bin11011011011000…
…10111001011110
3121000212101222122
431231202321132
5432342340410
634454342542
75462222654
oct1555427136
9530771878
10230043230
1110894297a
126505aa52
1338875b71
14227a2dd4
15152e0e55
hexdb62e5e

230043230 has 16 divisors (see below), whose sum is σ = 415859184. Its totient is φ = 91621440.

The previous prime is 230043223. The next prime is 230043293. The reversal of 230043230 is 32340032.

It is a junction number, because it is equal to n+sod(n) for n = 230043199 and 230043208.

It is a congruent number.

It is an unprimeable number.

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, 47036 + ... + 51695.

It is an arithmetic number, because the mean of its divisors is an integer number (25991199).

Almost surely, 2230043230 is an apocalyptic number.

230043230 is a deficient number, since it is larger than the sum of its proper divisors (185815954).

230043230 is a wasteful number, since it uses less digits than its factorization.

230043230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98971.

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 230043230 is about 15167.1760720313. The cubic root of 230043230 is about 612.7309516394.

Adding to 230043230 its reverse (32340032), we get a palindrome (262383262).

The spelling of 230043230 in words is "two hundred thirty million, forty-three thousand, two hundred thirty".

Divisors: 1 2 5 10 233 466 1165 2330 98731 197462 493655 987310 23004323 46008646 115021615 230043230