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230702530 = 2580928517
BaseRepresentation
bin11011100000000…
…11110111000010
3121002002220101011
431300003313002
5433024440110
634520431134
75500640062
oct1560036702
9532086334
10230702530
11109253253
12653184aa
1338a46c96
14228d53a2
15153c148a
hexdc03dc2

230702530 has 16 divisors (see below), whose sum is σ = 415792440. Its totient is φ = 92163712.

The previous prime is 230702513. The next prime is 230702561. The reversal of 230702530 is 35207032.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 230341329 + 361201 = 15177^2 + 601^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6169 + ... + 22348.

Almost surely, 2230702530 is an apocalyptic number.

230702530 is a deficient number, since it is larger than the sum of its proper divisors (185089910).

230702530 is a wasteful number, since it uses less digits than its factorization.

230702530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29333.

The product of its (nonzero) digits is 1260, while the sum is 22.

The square root of 230702530 is about 15188.8949565135. The cubic root of 230702530 is about 613.3157521609.

Adding to 230702530 its reverse (35207032), we get a palindrome (265909562).

It can be divided in two parts, 23070 and 2530, that added together give a square (25600 = 1602).

The spelling of 230702530 in words is "two hundred thirty million, seven hundred two thousand, five hundred thirty".

Divisors: 1 2 5 10 809 1618 4045 8090 28517 57034 142585 285170 23070253 46140506 115351265 230702530