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5868561121 = 8965938889
BaseRepresentation
bin1010111011100101…
…10010001011100001
3120010222201210102121
411131302302023201
544004322423441
62410155344241
7265266642433
oct53562621341
916128653377
105868561121
112541716915
121179452081
13726a98397
143d9596653
15245322dd1
hex15dcb22e1

5868561121 has 4 divisors (see below), whose sum is σ = 5934500100. Its totient is φ = 5802622144.

The previous prime is 5868561091. The next prime is 5868561131. The reversal of 5868561121 is 1211658685.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1211658685 = 5242331737.

It can be written as a sum of positive squares in 2 ways, for example, as 4176390625 + 1692170496 = 64625^2 + 41136^2 .

It is a cyclic number.

It is not a de Polignac number, because 5868561121 - 25 = 5868561089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5868561131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32969356 + ... + 32969533.

It is an arithmetic number, because the mean of its divisors is an integer number (1483625025).

Almost surely, 25868561121 is an apocalyptic number.

It is an amenable number.

5868561121 is a deficient number, since it is larger than the sum of its proper divisors (65938979).

5868561121 is an equidigital number, since it uses as much as digits as its factorization.

5868561121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65938978.

The product of its digits is 115200, while the sum is 43.

The square root of 5868561121 is about 76606.5344536613. The cubic root of 5868561121 is about 1803.7535992566.

The spelling of 5868561121 in words is "five billion, eight hundred sixty-eight million, five hundred sixty-one thousand, one hundred twenty-one".

Divisors: 1 89 65938889 5868561121