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212010319 = 613475579
BaseRepresentation
bin11001010001100…
…00010101001111
3112202221020111001
430220300111033
5413233312234
633012041131
75153025613
oct1450602517
9482836431
10212010319
11a9746544
125b0031a7
1334c00bc1
142022b343
151392cd14
hexca3054f

212010319 has 4 divisors (see below), whose sum is σ = 215485960. Its totient is φ = 208534680.

The previous prime is 212010317. The next prime is 212010347. The reversal of 212010319 is 913010212.

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

It is a cyclic number.

It is not a de Polignac number, because 212010319 - 21 = 212010317 is a prime.

It is a super-2 number, since 2×2120103192 = 89896750724963522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212010296 and 212010305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212010313) 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, 1737729 + ... + 1737850.

It is an arithmetic number, because the mean of its divisors is an integer number (53871490).

Almost surely, 2212010319 is an apocalyptic number.

212010319 is a deficient number, since it is larger than the sum of its proper divisors (3475641).

212010319 is an equidigital number, since it uses as much as digits as its factorization.

212010319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3475640.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 212010319 is about 14560.5741301640. The cubic root of 212010319 is about 596.2828700563.

The spelling of 212010319 in words is "two hundred twelve million, ten thousand, three hundred nineteen".

Divisors: 1 61 3475579 212010319