Base | Representation |
---|---|
bin | 111111110111101… |
… | …1100000110101011 |
3 | 12112100200220120022 |
4 | 1333233130012223 |
5 | 13342121023230 |
6 | 552354551055 |
7 | 104052260216 |
oct | 17757340653 |
9 | 5470626508 |
10 | 2143142315 |
11 | 9aa8255a6 |
12 | 4b989848b |
13 | 282014a62 |
14 | 1648ba77d |
15 | c823a1e5 |
hex | 7fbdc1ab |
2143142315 has 32 divisors (see below), whose sum is σ = 2760588864. Its totient is φ = 1591582720.
The previous prime is 2143142167. The next prime is 2143142327. The reversal of 2143142315 is 5132413412.
It is a happy number.
It is not a de Polignac number, because 2143142315 - 218 = 2142880171 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2193107 + ... + 2194083.
It is an arithmetic number, because the mean of its divisors is an integer number (86268402).
Almost surely, 22143142315 is an apocalyptic number.
2143142315 is a deficient number, since it is larger than the sum of its proper divisors (617446549).
2143142315 is a wasteful number, since it uses less digits than its factorization.
2143142315 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1327.
The product of its digits is 2880, while the sum is 26.
The square root of 2143142315 is about 46294.0850973426. The cubic root of 2143142315 is about 1289.2891773268.
Adding to 2143142315 its reverse (5132413412), we get a palindrome (7275555727).
The spelling of 2143142315 in words is "two billion, one hundred forty-three million, one hundred forty-two thousand, three hundred fifteen".
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