Base | Representation |
---|---|
bin | 11110100100101110000… |
… | …101100101000001001111 |
3 | 21102212002011011101210122 |
4 | 132210232011211001033 |
5 | 233410333112101111 |
6 | 4245105223255155 |
7 | 304536020140142 |
oct | 36445605450117 |
9 | 7385064141718 |
10 | 2101012222031 |
11 | 740041698318 |
12 | 29b2348aa4bb |
13 | 1231809a0058 |
14 | 73992120059 |
15 | 399bb00ecdb |
hex | 1e92e16504f |
2101012222031 has 2 divisors, whose sum is σ = 2101012222032. Its totient is φ = 2101012222030.
The previous prime is 2101012222009. The next prime is 2101012222051. The reversal of 2101012222031 is 1302222101012.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 2101012222031 - 26 = 2101012221967 is a prime.
It is a super-2 number, since 2×21010122220312 (a number of 25 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2101012222051) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050506111015 + 1050506111016.
It is an arithmetic number, because the mean of its divisors is an integer number (1050506111016).
Almost surely, 22101012222031 is an apocalyptic number.
2101012222031 is a deficient number, since it is larger than the sum of its proper divisors (1).
2101012222031 is an equidigital number, since it uses as much as digits as its factorization.
2101012222031 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 96, while the sum is 17.
Adding to 2101012222031 its reverse (1302222101012), we get a palindrome (3403234323043).
The spelling of 2101012222031 in words is "two trillion, one hundred one billion, twelve million, two hundred twenty-two thousand, thirty-one".
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