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20211141 = 343315559
BaseRepresentation
bin100110100011…
…0010111000101
31102000211110210
41031012113011
520133224031
62001110033
7333535416
oct115062705
942024423
1020211141
1110454a25
126928319
134258572
14298180d
151b93746
hex13465c5

20211141 has 8 divisors (see below), whose sum is σ = 27012160. Its totient is φ = 13442112.

The previous prime is 20211131. The next prime is 20211157. The reversal of 20211141 is 14111202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20211141 - 25 = 20211109 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 (20211131) 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, 6481 + ... + 9078.

It is an arithmetic number, because the mean of its divisors is an integer number (3376520).

Almost surely, 220211141 is an apocalyptic number.

It is an amenable number.

20211141 is a deficient number, since it is larger than the sum of its proper divisors (6801019).

20211141 is a wasteful number, since it uses less digits than its factorization.

20211141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15995.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 20211141 is about 4495.6802599829. The cubic root of 20211141 is about 272.3936279266.

Adding to 20211141 its reverse (14111202), we get a palindrome (34322343).

The spelling of 20211141 in words is "twenty million, two hundred eleven thousand, one hundred forty-one".

Divisors: 1 3 433 1299 15559 46677 6737047 20211141