Base | Representation |
---|---|
bin | 111111111011100… |
… | …0110010001000111 |
3 | 12112111110220121212 |
4 | 1333313012101013 |
5 | 13343124300043 |
6 | 552510002035 |
7 | 104105321462 |
oct | 17767062107 |
9 | 5474426555 |
10 | 2145150023 |
11 | a00976a65 |
12 | 4ba4a631b |
13 | 282568853 |
14 | 164c802d9 |
15 | c84d5018 |
hex | 7fdc6447 |
2145150023 has 8 divisors (see below), whose sum is σ = 2175683328. Its totient is φ = 2114728504.
The previous prime is 2145150019. The next prime is 2145150047. The reversal of 2145150023 is 3200515412.
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 2145150023 - 22 = 2145150019 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 (2145150013) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11090 + ... + 66432.
It is an arithmetic number, because the mean of its divisors is an integer number (271960416).
Almost surely, 22145150023 is an apocalyptic number.
2145150023 is a deficient number, since it is larger than the sum of its proper divisors (30533305).
2145150023 is an equidigital number, since it uses as much as digits as its factorization.
2145150023 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 55893.
The product of its (nonzero) digits is 1200, while the sum is 23.
The square root of 2145150023 is about 46315.7643033125. The cubic root of 2145150023 is about 1289.6916561676.
Adding to 2145150023 its reverse (3200515412), we get a palindrome (5345665435).
The spelling of 2145150023 in words is "two billion, one hundred forty-five million, one hundred fifty thousand, twenty-three".
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