Base | Representation |
---|---|
bin | 11101101101111100110… |
… | …00010101111010110111 |
3 | 10121121122022020121021200 |
4 | 32312332120111322313 |
5 | 113212203413121211 |
6 | 2101030520343543 |
7 | 133525561566201 |
oct | 16667630257267 |
9 | 3547568217250 |
10 | 1021101301431 |
11 | 364057078a92 |
12 | 145a90914bb3 |
13 | 7539bb8b613 |
14 | 375c8ac9771 |
15 | 1b864023b56 |
hex | edbe615eb7 |
1021101301431 has 24 divisors (see below), whose sum is σ = 1511552908320. Its totient is φ = 663842995200.
The previous prime is 1021101301393. The next prime is 1021101301483. The reversal of 1021101301431 is 1341031011201.
It is a happy number.
1021101301431 is a `hidden beast` number, since 10 + 211 + 0 + 13 + 0 + 1 + 431 = 666.
It is not a de Polignac number, because 1021101301431 - 229 = 1020564430519 is a prime.
It is a super-2 number, since 2×10211013014312 (a number of 25 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1021101301331) 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, 254055 + ... + 1451463.
It is an arithmetic number, because the mean of its divisors is an integer number (62981371180).
Almost surely, 21021101301431 is an apocalyptic number.
1021101301431 is a deficient number, since it is larger than the sum of its proper divisors (490451606889).
1021101301431 is a wasteful number, since it uses less digits than its factorization.
1021101301431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1199767 (or 1199764 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 18.
Adding to 1021101301431 its reverse (1341031011201), we get a palindrome (2362132312632).
The spelling of 1021101301431 in words is "one trillion, twenty-one billion, one hundred one million, three hundred one thousand, four hundred thirty-one".
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