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20041211 = 232833079
BaseRepresentation
bin100110001110…
…0110111111011
31101201012101002
41030130313323
520112304321
61553315215
7332230121
oct114346773
941635332
1020041211
1110349293
126865b0b
1341c9108
142939911
151b5d20b
hex131cdfb

20041211 has 8 divisors (see below), whose sum is σ = 20993280. Its totient is φ = 19095912.

The previous prime is 20041199. The next prime is 20041213. The reversal of 20041211 is 11214002.

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 20041211 - 210 = 20040187 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20041192 and 20041201.

It is not an unprimeable number, because it can be changed into a prime (20041213) 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, 4970 + ... + 8048.

It is an arithmetic number, because the mean of its divisors is an integer number (2624160).

Almost surely, 220041211 is an apocalyptic number.

20041211 is a deficient number, since it is larger than the sum of its proper divisors (952069).

20041211 is a wasteful number, since it uses less digits than its factorization.

20041211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3385.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 20041211 is about 4476.7411138014. The cubic root of 20041211 is about 271.6280735237.

Adding to 20041211 its reverse (11214002), we get a palindrome (31255213).

The spelling of 20041211 in words is "twenty million, forty-one thousand, two hundred eleven".

Divisors: 1 23 283 3079 6509 70817 871357 20041211