Base | Representation |
---|---|
bin | 1000010001010101… |
… | …1011111100100001 |
3 | 12201201201110022010 |
4 | 2010111123330201 |
5 | 14021333241001 |
6 | 1004150503133 |
7 | 106006330200 |
oct | 20425337441 |
9 | 5651643263 |
10 | 2220212001 |
11 | a3a285157 |
12 | 51b664aa9 |
13 | 294c8a417 |
14 | 170c1d237 |
15 | cedb08d6 |
hex | 8455bf21 |
2220212001 has 24 divisors (see below), whose sum is σ = 3462873120. Its totient is φ = 1261589952.
The previous prime is 2220211979. The next prime is 2220212017. The reversal of 2220212001 is 1002120222.
It is not a de Polignac number, because 2220212001 - 25 = 2220211969 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (2220210001) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15876 + ... + 68501.
It is an arithmetic number, because the mean of its divisors is an integer number (144286380).
Almost surely, 22220212001 is an apocalyptic number.
2220212001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
It is an amenable number.
2220212001 is a deficient number, since it is larger than the sum of its proper divisors (1242661119).
2220212001 is a wasteful number, since it uses less digits than its factorization.
2220212001 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 84573 (or 84566 counting only the distinct ones).
The product of its (nonzero) digits is 32, while the sum is 12.
The square root of 2220212001 is about 47119.1256391712. The cubic root of 2220212001 is about 1304.5622741797.
Adding to 2220212001 its reverse (1002120222), we get a palindrome (3222332223).
The spelling of 2220212001 in words is "two billion, two hundred twenty million, two hundred twelve thousand, one".
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