Base | Representation |
---|---|
bin | 1011110000100111111… |
… | …1110111011111100111 |
3 | 201022110220100100101121 |
4 | 2330021333313133213 |
5 | 11302224441401411 |
6 | 232451205434411 |
7 | 20411343603400 |
oct | 2741177673747 |
9 | 638426310347 |
10 | 202031200231 |
11 | 78754388a83 |
12 | 331a3a0ba07 |
13 | 1608909b8c3 |
14 | 9ac7b7c9a7 |
15 | 53c694b571 |
hex | 2f09ff77e7 |
202031200231 has 12 divisors (see below), whose sum is σ = 235162770480. Its totient is φ = 173061369600.
The previous prime is 202031200223. The next prime is 202031200247. The reversal of 202031200231 is 132002130202.
It is not a de Polignac number, because 202031200231 - 23 = 202031200223 is a prime.
It is a super-2 number, since 2×2020312002312 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (202031200201) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1209211 + ... + 1366108.
It is an arithmetic number, because the mean of its divisors is an integer number (19596897540).
Almost surely, 2202031200231 is an apocalyptic number.
202031200231 is a deficient number, since it is larger than the sum of its proper divisors (33131570249).
202031200231 is a wasteful number, since it uses less digits than its factorization.
202031200231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2576934 (or 2576927 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 16.
Adding to 202031200231 its reverse (132002130202), we get a palindrome (334033330433).
The spelling of 202031200231 in words is "two hundred two billion, thirty-one million, two hundred thousand, two hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.144 sec. • engine limits •