Base | Representation |
---|---|
bin | 11011011101111… |
… | …01000011110011 |
3 | 121001120011120110 |
4 | 31232331003303 |
5 | 432441200111 |
6 | 34510312403 |
7 | 5465321436 |
oct | 1556750363 |
9 | 531504513 |
10 | 230412531 |
11 | 109075388 |
12 | 651b8703 |
13 | 38974c9b |
14 | 2285b81d |
15 | 153655a6 |
hex | dbbd0f3 |
230412531 has 8 divisors (see below), whose sum is σ = 311802304. Its totient is φ = 151315560.
The previous prime is 230412529. The next prime is 230412541. The reversal of 230412531 is 135214032.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 230412531 - 21 = 230412529 is a prime.
It is a super-2 number, since 2×2304125312 = 106179868883651922, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 230412498 and 230412507.
It is not an unprimeable number, because it can be changed into a prime (230412521) 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, 572965 + ... + 573366.
It is an arithmetic number, because the mean of its divisors is an integer number (38975288).
Almost surely, 2230412531 is an apocalyptic number.
230412531 is a deficient number, since it is larger than the sum of its proper divisors (81389773).
230412531 is a wasteful number, since it uses less digits than its factorization.
230412531 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1146401.
The product of its (nonzero) digits is 720, while the sum is 21.
The square root of 230412531 is about 15179.3455392517. The cubic root of 230412531 is about 613.0586598609.
Adding to 230412531 its reverse (135214032), we get a palindrome (365626563).
The spelling of 230412531 in words is "two hundred thirty million, four hundred twelve thousand, five hundred thirty-one".
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