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211042141 = 317738807
BaseRepresentation
bin11001001010000…
…11111101011101
3112201010001101121
430211003331131
5413011322031
632535210541
75141554132
oct1445037535
9481101347
10211042141
11a91450a2
125a816a51
133495230b
1420058589
15137db011
hexc943f5d

211042141 has 8 divisors (see below), whose sum is σ = 218156544. Its totient is φ = 203946960.

The previous prime is 211042133. The next prime is 211042147. The reversal of 211042141 is 141240112.

It is a happy number.

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 211042141 - 23 = 211042133 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 (211042147) 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, 19560 + ... + 28366.

It is an arithmetic number, because the mean of its divisors is an integer number (27269568).

Almost surely, 2211042141 is an apocalyptic number.

It is an amenable number.

211042141 is a deficient number, since it is larger than the sum of its proper divisors (7114403).

211042141 is an equidigital number, since it uses as much as digits as its factorization.

211042141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9611.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 211042141 is about 14527.2895269558. The cubic root of 211042141 is about 595.3738121318.

Adding to 211042141 its reverse (141240112), we get a palindrome (352282253).

The spelling of 211042141 in words is "two hundred eleven million, forty-two thousand, one hundred forty-one".

Divisors: 1 31 773 8807 23963 273017 6807811 211042141