Base | Representation |
---|---|
bin | 1011110000100000110… |
… | …1011011011110000111 |
3 | 201022101210220020020010 |
4 | 2330020031123132013 |
5 | 11302144301413111 |
6 | 232444214441303 |
7 | 20410530610230 |
oct | 2741015333607 |
9 | 638353806203 |
10 | 202001201031 |
11 | 78739459153 |
12 | 33195963233 |
13 | 16082ac70b6 |
14 | 9ac3bb0087 |
15 | 53c3ec2aa6 |
hex | 2f0835b787 |
202001201031 has 32 divisors (see below), whose sum is σ = 310244622336. Its totient is φ = 114517260000.
The previous prime is 202001201011. The next prime is 202001201099. The reversal of 202001201031 is 130102100202.
It is not a de Polignac number, because 202001201031 - 27 = 202001200903 is a prime.
It is a super-2 number, since 2×2020012010312 (a number of 23 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 202001200998 and 202001201016.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (202001201011) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13612786 + ... + 13627616.
It is an arithmetic number, because the mean of its divisors is an integer number (9695144448).
Almost surely, 2202001201031 is an apocalyptic number.
202001201031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
202001201031 is a deficient number, since it is larger than the sum of its proper divisors (108243421305).
202001201031 is a wasteful number, since it uses less digits than its factorization.
202001201031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19923.
The product of its (nonzero) digits is 24, while the sum is 12.
Adding to 202001201031 its reverse (130102100202), we get a palindrome (332103301233).
The spelling of 202001201031 in words is "two hundred two billion, one million, two hundred one thousand, thirty-one".
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