Base | Representation |
---|---|
bin | 11011011010111… |
… | …01010101000101 |
3 | 121000211020200212 |
4 | 31231131111011 |
5 | 432341123141 |
6 | 34454045205 |
7 | 5462066321 |
oct | 1555352505 |
9 | 530736625 |
10 | 230020421 |
11 | 108927824 |
12 | 65049805 |
13 | 38868677 |
14 | 22798981 |
15 | 152d92eb |
hex | db5d545 |
230020421 has 8 divisors (see below), whose sum is σ = 243777600. Its totient is φ = 216288448.
The previous prime is 230020393. The next prime is 230020423. The reversal of 230020421 is 124020032.
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 230020421 - 210 = 230019397 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 230020396 and 230020405.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230020423) 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, 14480 + ... + 25878.
It is an arithmetic number, because the mean of its divisors is an integer number (30472200).
Almost surely, 2230020421 is an apocalyptic number.
It is an amenable number.
230020421 is a deficient number, since it is larger than the sum of its proper divisors (13757179).
230020421 is a wasteful number, since it uses less digits than its factorization.
230020421 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12603.
The product of its (nonzero) digits is 96, while the sum is 14.
The square root of 230020421 is about 15166.4241335919. The cubic root of 230020421 is about 612.7107000223.
Adding to 230020421 its reverse (124020032), we get a palindrome (354040453).
The spelling of 230020421 in words is "two hundred thirty million, twenty thousand, four hundred twenty-one".
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