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2031210213 = 35376116787
BaseRepresentation
bin111100100010001…
…1100111011100101
312020120002011120220
41321010130323211
513124442211323
6533315514553
7101223000444
oct17104347345
95216064526
102031210213
1195262432a
124882b8a59
13264a84146
14153aa0d5b
15bd4ca0e3
hex7911cee5

2031210213 has 16 divisors (see below), whose sum is σ = 2763170496. Its totient is φ = 1326765440.

The previous prime is 2031210193. The next prime is 2031210217. The reversal of 2031210213 is 3120121302.

It is a cyclic number.

It is not a de Polignac number, because 2031210213 - 29 = 2031209701 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2031210192 and 2031210201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031210217) 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 in 15 ways as a sum of consecutive naturals, for example, 112606 + ... + 129392.

It is an arithmetic number, because the mean of its divisors is an integer number (172698156).

Almost surely, 22031210213 is an apocalyptic number.

It is an amenable number.

2031210213 is a deficient number, since it is larger than the sum of its proper divisors (731960283).

2031210213 is a wasteful number, since it uses less digits than its factorization.

2031210213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17604.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2031210213 is about 45068.9495440042. The cubic root of 2031210213 is about 1266.4409858857.

Adding to 2031210213 its reverse (3120121302), we get a palindrome (5151331515).

The spelling of 2031210213 in words is "two billion, thirty-one million, two hundred ten thousand, two hundred thirteen".

Divisors: 1 3 53 159 761 2283 16787 40333 50361 120999 889711 2669133 12774907 38324721 677070071 2031210213