Base | Representation |
---|---|
bin | 10001111011101… |
… | …10000101000101 |
3 | 101111001122012021 |
4 | 20331312011011 |
5 | 302002230041 |
6 | 22532123141 |
7 | 3504430330 |
oct | 1075660505 |
9 | 344048167 |
10 | 150430021 |
11 | 77a06335 |
12 | 424664b1 |
13 | 2521c861 |
14 | 15d9b617 |
15 | d316cd1 |
hex | 8f76145 |
150430021 has 8 divisors (see below), whose sum is σ = 173016320. Its totient is φ = 128117808.
The previous prime is 150429977. The next prime is 150430057. The reversal of 150430021 is 120034051.
150430021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 150430021 - 223 = 142041413 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 150429977 and 150430004.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (150430121) 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, 67341 + ... + 69538.
It is an arithmetic number, because the mean of its divisors is an integer number (21627040).
Almost surely, 2150430021 is an apocalyptic number.
It is an amenable number.
150430021 is a deficient number, since it is larger than the sum of its proper divisors (22586299).
150430021 is a wasteful number, since it uses less digits than its factorization.
150430021 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 137043.
The product of its (nonzero) digits is 120, while the sum is 16.
The square root of 150430021 is about 12264.9916836499. The cubic root of 150430021 is about 531.8365396107.
Adding to 150430021 its reverse (120034051), we get a palindrome (270464072).
The spelling of 150430021 in words is "one hundred fifty million, four hundred thirty thousand, twenty-one".
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