Base | Representation |
---|---|
bin | 1101011001101011001… |
… | …0111011110010000101 |
3 | 211000021010221112211022 |
4 | 3112122302323302011 |
5 | 12233002424410041 |
6 | 253433310320525 |
7 | 22430215226435 |
oct | 3263262736205 |
9 | 730233845738 |
10 | 230230310021 |
11 | 8970500a598 |
12 | 387537b9145 |
13 | 1893132169a |
14 | b200d5c2c5 |
15 | 5ec73e324b |
hex | 359acbbc85 |
230230310021 has 8 divisors (see below), whose sum is σ = 243778296024. Its totient is φ = 216682882560.
The previous prime is 230230309993. The next prime is 230230310053. The reversal of 230230310021 is 120013032032.
It can be written as a sum of positive squares in 4 ways, for example, as 69148487521 + 161081822500 = 262961^2 + 401350^2 .
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 230230310021 - 218 = 230230047877 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (17).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230230310071) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 953651 + ... + 1170431.
It is an arithmetic number, because the mean of its divisors is an integer number (30472287003).
Almost surely, 2230230310021 is an apocalyptic number.
It is an amenable number.
230230310021 is a deficient number, since it is larger than the sum of its proper divisors (13547986003).
230230310021 is a wasteful number, since it uses less digits than its factorization.
230230310021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 279271.
The product of its (nonzero) digits is 216, while the sum is 17.
Adding to 230230310021 its reverse (120013032032), we get a palindrome (350243342053).
The spelling of 230230310021 in words is "two hundred thirty billion, two hundred thirty million, three hundred ten thousand, twenty-one".
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