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1530230243 = 23912175261
BaseRepresentation
bin101101100110101…
…0111010111100011
310221122101202021012
41123031113113203
511113214331433
6411502051135
752630512443
oct13315272743
93848352235
101530230243
117158586a3
12368579aab
131b5047ca9
14107332123
158e51b848
hex5b3575e3

1530230243 has 8 divisors (see below), whose sum is σ = 1538187840. Its totient is φ = 1522286080.

The previous prime is 1530230213. The next prime is 1530230267. The reversal of 1530230243 is 3420320351.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1530230243 - 212 = 1530226147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1530230213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288233 + ... + 293493.

It is an arithmetic number, because the mean of its divisors is an integer number (192273480).

Almost surely, 21530230243 is an apocalyptic number.

1530230243 is a deficient number, since it is larger than the sum of its proper divisors (7957597).

1530230243 is a wasteful number, since it uses less digits than its factorization.

1530230243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6717.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 1530230243 is about 39118.1574591647. The cubic root of 1530230243 is about 1152.3531509058.

Adding to 1530230243 its reverse (3420320351), we get a palindrome (4950550594).

The spelling of 1530230243 in words is "one billion, five hundred thirty million, two hundred thirty thousand, two hundred forty-three".

Divisors: 1 239 1217 5261 290863 1257379 6402637 1530230243