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211121041 = 8313119417
BaseRepresentation
bin11001001010101…
…11001110010001
3112201021001121211
430211113032101
5413021333131
632541020121
75142333145
oct1445271621
9481231554
10211121041
11a91993aa
125a854641
133497c1c1
1420079225
15138045b1
hexc957391

211121041 has 8 divisors (see below), whose sum is σ = 215306784. Its totient is φ = 206974560.

The previous prime is 211121021. The next prime is 211121047. The reversal of 211121041 is 140121112.

211121041 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 211121041 - 29 = 211120529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211121047) 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, 1165 + ... + 20581.

It is an arithmetic number, because the mean of its divisors is an integer number (26913348).

Almost surely, 2211121041 is an apocalyptic number.

It is an amenable number.

211121041 is a deficient number, since it is larger than the sum of its proper divisors (4185743).

211121041 is a wasteful number, since it uses less digits than its factorization.

211121041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19631.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 211121041 is about 14530.0048520295. The cubic root of 211121041 is about 595.4479981700.

Adding to 211121041 its reverse (140121112), we get a palindrome (351242153).

The spelling of 211121041 in words is "two hundred eleven million, one hundred twenty-one thousand, forty-one".

Divisors: 1 83 131 10873 19417 1611611 2543627 211121041