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212020303 = 1129996427
BaseRepresentation
bin11001010001100…
…10110001001111
3112202221202011211
430220302301033
5413234122203
633012155251
75153066665
oct1450626117
9482852154
10212020303
11a9752aa0
125b008b27
1334c05601
1420230c35
1513930c6d
hexca32c4f

212020303 has 8 divisors (see below), whose sum is σ = 231408000. Its totient is φ = 192651480.

The previous prime is 212020301. The next prime is 212020349. The reversal of 212020303 is 303020212.

It is a happy number.

212020303 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 212020303 - 21 = 212020301 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 (212020301) 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, 29776 + ... + 36202.

It is an arithmetic number, because the mean of its divisors is an integer number (28926000).

Almost surely, 2212020303 is an apocalyptic number.

212020303 is a deficient number, since it is larger than the sum of its proper divisors (19387697).

212020303 is a wasteful number, since it uses less digits than its factorization.

212020303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9437.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 212020303 is about 14560.9169697516. The cubic root of 212020303 is about 596.2922299697.

Adding to 212020303 its reverse (303020212), we get a palindrome (515040515).

Subtracting 212020303 from its reverse (303020212), we obtain a palindrome (90999909).

The spelling of 212020303 in words is "two hundred twelve million, twenty thousand, three hundred three".

Divisors: 1 11 2999 6427 32989 70697 19274573 212020303