Base | Representation |
---|---|
bin | 11111111000011110… |
… | …001110000001110101 |
3 | 10021100210021001121212 |
4 | 133320132032001311 |
5 | 1030102230124141 |
6 | 23420541251205 |
7 | 2321223313403 |
oct | 377036160165 |
9 | 107323231555 |
10 | 34233442421 |
11 | 13577981a82 |
12 | 6774863b05 |
13 | 32c747c909 |
14 | 192a7a8473 |
15 | d556122eb |
hex | 7f878e075 |
34233442421 has 4 divisors (see below), whose sum is σ = 34422577644. Its totient is φ = 34044307200.
The previous prime is 34233442417. The next prime is 34233442447. The reversal of 34233442421 is 12424433243.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12424433243 = 229 ⋅54255167.
It can be written as a sum of positive squares in 2 ways, for example, as 8860456900 + 25372985521 = 94130^2 + 159289^2 .
It is a cyclic number.
It is not a de Polignac number, because 34233442421 - 22 = 34233442417 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 (34233442471) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94567340 + ... + 94567701.
It is an arithmetic number, because the mean of its divisors is an integer number (8605644411).
Almost surely, 234233442421 is an apocalyptic number.
It is an amenable number.
34233442421 is a deficient number, since it is larger than the sum of its proper divisors (189135223).
34233442421 is a wasteful number, since it uses less digits than its factorization.
34233442421 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 189135222.
The product of its digits is 55296, while the sum is 32.
Adding to 34233442421 its reverse (12424433243), we get a palindrome (46657875664).
The spelling of 34233442421 in words is "thirty-four billion, two hundred thirty-three million, four hundred forty-two thousand, four hundred twenty-one".
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