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212020141 = 1723542251
BaseRepresentation
bin11001010001100…
…10101110101101
3112202221201221211
430220302232231
5413234121031
633012154421
75153066344
oct1450625655
9482851854
10212020141
11a9752963
125b008a11
1334c05508
1420230b5b
1513930bb1
hexca32bad

212020141 has 8 divisors (see below), whose sum is σ = 234252864. Its totient is φ = 190872000.

The previous prime is 212020139. The next prime is 212020153. The reversal of 212020141 is 141020212.

It is a happy number.

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 212020141 - 21 = 212020139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212020111) 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, 270735 + ... + 271516.

It is an arithmetic number, because the mean of its divisors is an integer number (29281608).

Almost surely, 2212020141 is an apocalyptic number.

It is an amenable number.

212020141 is a deficient number, since it is larger than the sum of its proper divisors (22232723).

212020141 is a wasteful number, since it uses less digits than its factorization.

212020141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542291.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 212020141 is about 14560.9114069141. The cubic root of 212020141 is about 596.2920780985.

Adding to 212020141 its reverse (141020212), we get a palindrome (353040353).

The spelling of 212020141 in words is "two hundred twelve million, twenty thousand, one hundred forty-one".

Divisors: 1 17 23 391 542251 9218267 12471773 212020141