Base | Representation |
---|---|
bin | 110100100100110101110000… |
… | …101001000111001110000101 |
3 | 1010022201101011100101101200111 |
4 | 310210311300221013032011 |
5 | 220301433112244443141 |
6 | 2135441341003313021 |
7 | 66463551023500144 |
oct | 6444656051071605 |
9 | 1108641140341614 |
10 | 231230044140421 |
11 | 6774a124842907 |
12 | 21b25b21b1b771 |
13 | 9c03b905641c1 |
14 | 411584575375b |
15 | 1baec5649b381 |
hex | d24d70a47385 |
231230044140421 has 8 divisors (see below), whose sum is σ = 234681766127264. Its totient is φ = 227778337662480.
The previous prime is 231230044140413. The next prime is 231230044140497. The reversal of 231230044140421 is 124041440032132.
It is a happy number.
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 231230044140421 - 23 = 231230044140413 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (231230044149421) 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, 28120711 + ... + 35401051.
It is an arithmetic number, because the mean of its divisors is an integer number (29335220765908).
Almost surely, 2231230044140421 is an apocalyptic number.
It is an amenable number.
231230044140421 is a deficient number, since it is larger than the sum of its proper divisors (3451721986843).
231230044140421 is an equidigital number, since it uses as much as digits as its factorization.
231230044140421 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7754451.
The product of its (nonzero) digits is 18432, while the sum is 31.
Adding to 231230044140421 its reverse (124041440032132), we get a palindrome (355271484172553).
The spelling of 231230044140421 in words is "two hundred thirty-one trillion, two hundred thirty billion, forty-four million, one hundred forty thousand, four hundred twenty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •