Base | Representation |
---|---|
bin | 111111111011110… |
… | …0001110101010010 |
3 | 12112111200122111121 |
4 | 1333313201311102 |
5 | 13343141403210 |
6 | 552512232454 |
7 | 104106301606 |
oct | 17767416522 |
9 | 5474618447 |
10 | 2145262930 |
11 | a00a43878 |
12 | 4ba53b72a |
13 | 2825a8065 |
14 | 164cad506 |
15 | c85086da |
hex | 7fde1d52 |
2145262930 has 16 divisors (see below), whose sum is σ = 3986037504. Its totient is φ = 830424240.
The previous prime is 2145262891. The next prime is 2145262937. The reversal of 2145262930 is 392625412.
It is not an unprimeable number, because it can be changed into a prime (2145262937) 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, 3459792 + ... + 3460411.
It is an arithmetic number, because the mean of its divisors is an integer number (249127344).
Almost surely, 22145262930 is an apocalyptic number.
2145262930 is a deficient number, since it is larger than the sum of its proper divisors (1840774574).
2145262930 is a wasteful number, since it uses less digits than its factorization.
2145262930 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6920241.
The product of its (nonzero) digits is 25920, while the sum is 34.
The square root of 2145262930 is about 46316.9831703232. The cubic root of 2145262930 is about 1289.7142828152.
The spelling of 2145262930 in words is "two billion, one hundred forty-five million, two hundred sixty-two thousand, nine hundred thirty".
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