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212130310201 = 1013041690661
BaseRepresentation
bin1100010110001111110…
…0111010100000111001
3202021112201121021211121
43011203330322200321
511433420324411301
6241241252425241
721216533612605
oct3054374724071
9667481537747
10212130310201
1181a67036857
1235142018221
131700847a714
14a3a5140505
1557b83853a1
hex3163f3a839

212130310201 has 8 divisors (see below), whose sum is σ = 214301368008. Its totient is φ = 209960640000.

The previous prime is 212130310187. The next prime is 212130310213. The reversal of 212130310201 is 102013031212.

It can be written as a sum of positive squares in 4 ways, for example, as 205006106176 + 7124204025 = 452776^2 + 84405^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212130310201 - 25 = 212130310169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212130310001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38190 + ... + 652471.

It is an arithmetic number, because the mean of its divisors is an integer number (26787671001).

Almost surely, 2212130310201 is an apocalyptic number.

It is an amenable number.

212130310201 is a deficient number, since it is larger than the sum of its proper divisors (2171057807).

212130310201 is a wasteful number, since it uses less digits than its factorization.

212130310201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693803.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 212130310201 its reverse (102013031212), we get a palindrome (314143341413).

The spelling of 212130310201 in words is "two hundred twelve billion, one hundred thirty million, three hundred ten thousand, two hundred one".

Divisors: 1 101 3041 307141 690661 69756761 2100300101 212130310201