Base | Representation |
---|---|
bin | 11011011010110… |
… | …11100011000001 |
3 | 121000210212200111 |
4 | 31231123203001 |
5 | 432340404441 |
6 | 34453551321 |
7 | 5462036122 |
oct | 1555334301 |
9 | 530725614 |
10 | 230013121 |
11 | 108922298 |
12 | 65045541 |
13 | 38865250 |
14 | 22796049 |
15 | 152d7081 |
hex | db5b8c1 |
230013121 has 8 divisors (see below), whose sum is σ = 247824360. Its totient is φ = 212218752.
The previous prime is 230013101. The next prime is 230013139. The reversal of 230013121 is 121310032.
It can be written as a sum of positive squares in 4 ways, for example, as 3841600 + 226171521 = 1960^2 + 15039^2 .
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 230013121 - 25 = 230013089 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (13).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (230013101) 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, 49965 + ... + 54373.
It is an arithmetic number, because the mean of its divisors is an integer number (30978045).
Almost surely, 2230013121 is an apocalyptic number.
It is an amenable number.
230013121 is a deficient number, since it is larger than the sum of its proper divisors (17811239).
230013121 is a wasteful number, since it uses less digits than its factorization.
230013121 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8435.
The product of its (nonzero) digits is 36, while the sum is 13.
The square root of 230013121 is about 15166.1834684933. The cubic root of 230013121 is about 612.7042182276.
Adding to 230013121 its reverse (121310032), we get a palindrome (351323153).
The spelling of 230013121 in words is "two hundred thirty million, thirteen thousand, one hundred twenty-one".
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