Base | Representation |
---|---|
bin | 1011101101101000111… |
… | …1101001010011001111 |
3 | 201020102001210200111020 |
4 | 2323122033221103033 |
5 | 11244104341430111 |
6 | 232235505525223 |
7 | 20352445014252 |
oct | 2733217512317 |
9 | 636361720436 |
10 | 201230030031 |
11 | 78383118a48 |
12 | 32bbb643813 |
13 | 15c8c0c91b4 |
14 | 9a4d5cb099 |
15 | 537b442906 |
hex | 2eda3e94cf |
201230030031 has 16 divisors (see below), whose sum is σ = 268719897600. Its totient is φ = 133946908928.
The previous prime is 201230029993. The next prime is 201230030039. The reversal of 201230030031 is 130030032102.
It is a cyclic number.
It is not a de Polignac number, because 201230030031 - 29 = 201230029519 is a prime.
It is a super-2 number, since 2×2012300300312 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (201230030039) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5757250 + ... + 5792096.
It is an arithmetic number, because the mean of its divisors is an integer number (16794993600).
Almost surely, 2201230030031 is an apocalyptic number.
201230030031 is a deficient number, since it is larger than the sum of its proper divisors (67489867569).
201230030031 is a wasteful number, since it uses less digits than its factorization.
201230030031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 37758.
The product of its (nonzero) digits is 108, while the sum is 15.
Adding to 201230030031 its reverse (130030032102), we get a palindrome (331260062133).
The spelling of 201230030031 in words is "two hundred one billion, two hundred thirty million, thirty thousand, thirty-one".
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