Search a number
-
+
34200031 is a prime number
BaseRepresentation
bin1000001001110…
…1100111011111
32101100112121211
42002131213133
532223400111
63221005251
7563460355
oct202354737
971315554
1034200031
1118339a98
12b553827
137115908
1447837d5
153008521
hex209d9df

34200031 has 2 divisors, whose sum is σ = 34200032. Its totient is φ = 34200030.

The previous prime is 34200029. The next prime is 34200041. The reversal of 34200031 is 13000243.

It is a weak prime.

It is an emirp because it is prime and its reverse (13000243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34200031 - 21 = 34200029 is a prime.

It is a super-2 number, since 2×342000312 = 2339284240801922, which contains 22 as substring.

Together with 34200029, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 34199984 and 34200020.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34200041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17100015 + 17100016.

It is an arithmetic number, because the mean of its divisors is an integer number (17100016).

Almost surely, 234200031 is an apocalyptic number.

34200031 is a deficient number, since it is larger than the sum of its proper divisors (1).

34200031 is an equidigital number, since it uses as much as digits as its factorization.

34200031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 34200031 is about 5848.0792573289. The cubic root of 34200031 is about 324.5952547315.

Adding to 34200031 its reverse (13000243), we get a palindrome (47200274).

The spelling of 34200031 in words is "thirty-four million, two hundred thousand, thirty-one".