Base | Representation |
---|---|
bin | 11100001010000110… |
… | …011100101001001101 |
3 | 2220001002001012020000 |
4 | 130022012130221031 |
5 | 443404430432141 |
6 | 21520040314513 |
7 | 2120142513060 |
oct | 341206345115 |
9 | 86032035200 |
10 | 30234233421 |
11 | 11905489077 |
12 | 5a39472a39 |
13 | 2b0aa77262 |
14 | 166b5bc8d7 |
15 | bbe4965b6 |
hex | 70a19ca4d |
30234233421 has 40 divisors (see below), whose sum is σ = 51638695680. Its totient is φ = 17269384032.
The previous prime is 30234233411. The next prime is 30234233429. The reversal of 30234233421 is 12433243203.
30234233421 is a `hidden beast` number, since 3 + 0 + 2 + 3 + 4 + 233 + 421 = 666.
It is not a de Polignac number, because 30234233421 - 26 = 30234233357 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30234233429) by changing a digit.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1507900 + ... + 1527818.
It is an arithmetic number, because the mean of its divisors is an integer number (1290967392).
Almost surely, 230234233421 is an apocalyptic number.
It is an amenable number.
30234233421 is a deficient number, since it is larger than the sum of its proper divisors (21404462259).
30234233421 is a wasteful number, since it uses less digits than its factorization.
30234233421 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22615 (or 22606 counting only the distinct ones).
The product of its (nonzero) digits is 10368, while the sum is 27.
Adding to 30234233421 its reverse (12433243203), we get a palindrome (42667476624).
The spelling of 30234233421 in words is "thirty billion, two hundred thirty-four million, two hundred thirty-three thousand, four hundred twenty-one".
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