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212034001 = 415171561
BaseRepresentation
bin11001010001101…
…10000111010001
3112202222102222011
430220312013101
5413240042001
633012342521
75153154634
oct1450660721
9482872864
10212034001
11a9762313
125b014a41
1334c0b90a
1420235c1b
1513934d51
hexca361d1

212034001 has 4 divisors (see below), whose sum is σ = 217205604. Its totient is φ = 206862400.

The previous prime is 212033999. The next prime is 212034037. The reversal of 212034001 is 100430212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9000000 + 203034001 = 3000^2 + 14249^2 .

It is a cyclic number.

It is not a de Polignac number, because 212034001 - 21 = 212033999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212014001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2585740 + ... + 2585821.

It is an arithmetic number, because the mean of its divisors is an integer number (54301401).

Almost surely, 2212034001 is an apocalyptic number.

It is an amenable number.

212034001 is a deficient number, since it is larger than the sum of its proper divisors (5171603).

212034001 is an equidigital number, since it uses as much as digits as its factorization.

212034001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5171602.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 212034001 is about 14561.3873308830. The cubic root of 212034001 is about 596.3050712479.

Adding to 212034001 its reverse (100430212), we get a palindrome (312464213).

The spelling of 212034001 in words is "two hundred twelve million, thirty-four thousand, one".

Divisors: 1 41 5171561 212034001