Base | Representation |
---|---|
bin | 11011100001101… |
… | …00010111101111 |
3 | 121002110222221110 |
4 | 31300310113233 |
5 | 433102314411 |
6 | 34525003103 |
7 | 5502425301 |
oct | 1560642757 |
9 | 532428843 |
10 | 230901231 |
11 | 109379570 |
12 | 653b3493 |
13 | 38ab6562 |
14 | 22947971 |
15 | 154102a6 |
hex | dc345ef |
230901231 has 16 divisors (see below), whose sum is σ = 342195840. Its totient is φ = 137298720.
The previous prime is 230901211. The next prime is 230901241. The reversal of 230901231 is 132109032.
It is a happy number.
It is not a de Polignac number, because 230901231 - 211 = 230899183 is a prime.
It is a super-2 number, since 2×2309012312 = 106630756954630722, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 230901198 and 230901207.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230901211) by changing a digit.
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 15 ways as a sum of consecutive naturals, for example, 64261 + ... + 67758.
It is an arithmetic number, because the mean of its divisors is an integer number (21387240).
Almost surely, 2230901231 is an apocalyptic number.
230901231 is a deficient number, since it is larger than the sum of its proper divisors (111294609).
230901231 is a wasteful number, since it uses less digits than its factorization.
230901231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 132086.
The product of its (nonzero) digits is 324, while the sum is 21.
The square root of 230901231 is about 15195.4345446256. The cubic root of 230901231 is about 613.4917818483.
It can be divided in two parts, 230901 and 231, that added together give a palindrome (231132).
The spelling of 230901231 in words is "two hundred thirty million, nine hundred one thousand, two hundred thirty-one".
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