Base | Representation |
---|---|
bin | 1100010100010100001… |
… | …00011011100110000101 |
3 | 1111110102011010210110101 |
4 | 12022022010123212011 |
5 | 23413230120244141 |
6 | 522232010124101 |
7 | 42401602643452 |
oct | 6121204334605 |
9 | 1443364123411 |
10 | 423223212421 |
11 | 153540519639 |
12 | 6a034720631 |
13 | 30ba9a21159 |
14 | 166ac596829 |
15 | b0205ea531 |
hex | 628a11b985 |
423223212421 has 16 divisors (see below), whose sum is σ = 438883660800. Its totient is φ = 407689349760.
The previous prime is 423223212409. The next prime is 423223212439. The reversal of 423223212421 is 124212322324.
It is a cyclic number.
It is not a de Polignac number, because 423223212421 - 217 = 423223081349 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 423223212421.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (423223212521) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31579480 + ... + 31592878.
It is an arithmetic number, because the mean of its divisors is an integer number (27430228800).
Almost surely, 2423223212421 is an apocalyptic number.
It is an amenable number.
423223212421 is a deficient number, since it is larger than the sum of its proper divisors (15660448379).
423223212421 is a wasteful number, since it uses less digits than its factorization.
423223212421 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18036.
The product of its digits is 9216, while the sum is 28.
Adding to 423223212421 its reverse (124212322324), we get a palindrome (547435534745).
The spelling of 423223212421 in words is "four hundred twenty-three billion, two hundred twenty-three million, two hundred twelve thousand, four hundred twenty-one".
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