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212430310203 = 3487604324061
BaseRepresentation
bin1100010111010111010…
…1010100101100111011
3202022022122002212110210
43011311311110230323
511440024124411303
6241331130442203
721230135562306
oct3056565245473
9668278085423
10212430310203
1182100410241
1235206593363
1317055678507
14a3d2d13b3d
1557d4894203
hex3175d54b3b

212430310203 has 16 divisors (see below), whose sum is σ = 283880781056. Its totient is φ = 141300145440.

The previous prime is 212430310201. The next prime is 212430310229. The reversal of 212430310203 is 302013034212.

It is not a de Polignac number, because 212430310203 - 21 = 212430310201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212430310203.

It is not an unprimeable number, because it can be changed into a prime (212430310201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8816793 + ... + 8840853.

It is an arithmetic number, because the mean of its divisors is an integer number (17742548816).

Almost surely, 2212430310203 is an apocalyptic number.

212430310203 is a deficient number, since it is larger than the sum of its proper divisors (71450470853).

212430310203 is a wasteful number, since it uses less digits than its factorization.

212430310203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30594.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 212430310203 its reverse (302013034212), we get a palindrome (514443344415).

The spelling of 212430310203 in words is "two hundred twelve billion, four hundred thirty million, three hundred ten thousand, two hundred three".

Divisors: 1 3 487 1461 6043 18129 24061 72183 2942941 8828823 11717707 35153121 145400623 436201869 70810103401 212430310203