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11568968141 = 79011464241
BaseRepresentation
bin10101100011001000…
…00111000111001101
31002212021001110210112
422301210013013031
5142143123440031
65151551045405
7556455415043
oct126144070715
932767043715
1011568968141
1149a7420aa5
1222aa510865
131124a796a3
147ba69a393
1547a9cc62b
hex2b19071cd

11568968141 has 4 divisors (see below), whose sum is σ = 11570440284. Its totient is φ = 11567496000.

The previous prime is 11568968113. The next prime is 11568968143. The reversal of 11568968141 is 14186986511.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2724318025 + 8844650116 = 52195^2 + 94046^2 .

It is a cyclic number.

It is not a de Polignac number, because 11568968141 - 222 = 11564773837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11568968141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11568968143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 724220 + ... + 740021.

It is an arithmetic number, because the mean of its divisors is an integer number (2892610071).

Almost surely, 211568968141 is an apocalyptic number.

It is an amenable number.

11568968141 is a deficient number, since it is larger than the sum of its proper divisors (1472143).

11568968141 is an equidigital number, since it uses as much as digits as its factorization.

11568968141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1472142.

The product of its digits is 414720, while the sum is 50.

The spelling of 11568968141 in words is "eleven billion, five hundred sixty-eight million, nine hundred sixty-eight thousand, one hundred forty-one".

Divisors: 1 7901 1464241 11568968141