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9861241 = 131744621
BaseRepresentation
bin100101100111…
…100001111001
3200120000002011
4211213201321
510011024431
6551205521
7146550655
oct45474171
920500064
109861241
115625995
1233768a1
132073670
141449a65
15cebcb1
hex967879

9861241 has 8 divisors (see below), whose sum is σ = 11244744. Its totient is φ = 8567040.

The previous prime is 9861239. The next prime is 9861253. The reversal of 9861241 is 1421689.

9861241 = 22202 + 22212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4000000 + 5861241 = 2000^2 + 2421^2 .

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 9861241 - 21 = 9861239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9861221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22090 + ... + 22531.

It is an arithmetic number, because the mean of its divisors is an integer number (1405593).

Almost surely, 29861241 is an apocalyptic number.

9861241 is the 2221-st centered square number.

It is an amenable number.

9861241 is a deficient number, since it is larger than the sum of its proper divisors (1383503).

9861241 is a wasteful number, since it uses less digits than its factorization.

9861241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44651.

The product of its digits is 3456, while the sum is 31.

The square root of 9861241 is about 3140.2612948607. The cubic root of 9861241 is about 214.4423333951.

The spelling of 9861241 in words is "nine million, eight hundred sixty-one thousand, two hundred forty-one".

Divisors: 1 13 17 221 44621 580073 758557 9861241