Base | Representation |
---|---|
bin | 111111110111110… |
… | …1101000111100001 |
3 | 12112100211110011021 |
4 | 1333233231013201 |
5 | 13342130241001 |
6 | 552400245441 |
7 | 104053000330 |
oct | 17757550741 |
9 | 5470743137 |
10 | 2143212001 |
11 | 9aa872997 |
12 | 4b9910881 |
13 | 28203a6a8 |
14 | 1648d7d17 |
15 | c8250ba1 |
hex | 7fbed1e1 |
2143212001 has 8 divisors (see below), whose sum is σ = 2528397824. Its totient is φ = 1777779360.
The previous prime is 2143211999. The next prime is 2143212031. The reversal of 2143212001 is 1002123412.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 2143212001 - 21 = 2143211999 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2143212031) 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, 4938060 + ... + 4938493.
It is an arithmetic number, because the mean of its divisors is an integer number (316049728).
Almost surely, 22143212001 is an apocalyptic number.
It is an amenable number.
2143212001 is a deficient number, since it is larger than the sum of its proper divisors (385185823).
2143212001 is an equidigital number, since it uses as much as digits as its factorization.
2143212001 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9876591.
The product of its (nonzero) digits is 96, while the sum is 16.
The square root of 2143212001 is about 46294.8377359722. The cubic root of 2143212001 is about 1289.3031512677.
Adding to 2143212001 its reverse (1002123412), we get a palindrome (3145335413).
It can be divided in two parts, 21432 and 12001, that added together give a palindrome (33433).
The spelling of 2143212001 in words is "two billion, one hundred forty-three million, two hundred twelve thousand, one".
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