Base | Representation |
---|---|
bin | 111111111011100… |
… | …0110100000110110 |
3 | 12112111110222000011 |
4 | 1333313012200312 |
5 | 13343124313110 |
6 | 552510010434 |
7 | 104105324431 |
oct | 17767064066 |
9 | 5474428004 |
10 | 2145151030 |
11 | a009777a0 |
12 | 4ba4a6a1a |
13 | 282569149 |
14 | 164c80818 |
15 | c84d548a |
hex | 7fdc6836 |
2145151030 has 32 divisors (see below), whose sum is σ = 4214343168. Its totient is φ = 779676000.
The previous prime is 2145150971. The next prime is 2145151033. The reversal of 2145151030 is 301515412.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (22).
It is a junction number, because it is equal to n+sod(n) for n = 2145150992 and 2145151010.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2145151033) 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 15 ways as a sum of consecutive naturals, for example, 329305 + ... + 335755.
It is an arithmetic number, because the mean of its divisors is an integer number (131698224).
Almost surely, 22145151030 is an apocalyptic number.
2145151030 is a deficient number, since it is larger than the sum of its proper divisors (2069192138).
2145151030 is a wasteful number, since it uses less digits than its factorization.
2145151030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9492.
The product of its (nonzero) digits is 600, while the sum is 22.
The square root of 2145151030 is about 46315.7751743399. The cubic root of 2145151030 is about 1289.6918579747.
Adding to 2145151030 its reverse (301515412), we get a palindrome (2446666442).
The spelling of 2145151030 in words is "two billion, one hundred forty-five million, one hundred fifty-one thousand, thirty".
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