Search a number
-
+
2002000031 is a prime number
BaseRepresentation
bin111011101010100…
…0001100010011111
312011112010010202022
41313111001202133
513100003000111
6530353450355
7100416501533
oct16725014237
95145103668
102002000031
11938093289
1247a5709bb
1325b9c7805
1414dc59bc3
15bab5a2db
hex7754189f

2002000031 has 2 divisors, whose sum is σ = 2002000032. Its totient is φ = 2002000030.

The previous prime is 2002000027. The next prime is 2002000069. The reversal of 2002000031 is 1300002002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2002000031 - 22 = 2002000027 is a prime.

It is a super-3 number, since 3×20020000313 (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 2001999982 and 2002000018.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2002000081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001000015 + 1001000016.

It is an arithmetic number, because the mean of its divisors is an integer number (1001000016).

Almost surely, 22002000031 is an apocalyptic number.

2002000031 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002000031 is an equidigital number, since it uses as much as digits as its factorization.

2002000031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 2002000031 is about 44743.7149888116. The cubic root of 2002000031 is about 1260.3408901699.

Adding to 2002000031 its reverse (1300002002), we get a palindrome (3302002033).

The spelling of 2002000031 in words is "two billion, two million, thirty-one", and thus it is an aban number and an uban number.