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11287988068801 = 21435267376607
BaseRepresentation
bin1010010001000011000010…
…0001001110000111000001
31110222010021022000101011211
42210100300201032013001
52434420244421200201
640001344035210121
72243346603320263
oct244206041160701
943863238011154
1011287988068801
113662232a95544
121323830446941
1363b5b67a1562
142b04ad271b33
1514895e53c651
hexa443084e1c1

11287988068801 has 4 divisors (see below), whose sum is σ = 11293255447552. Its totient is φ = 11282720690052.

The previous prime is 11287988068757. The next prime is 11287988068813. The reversal of 11287988068801 is 10886088978211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11287988068801 - 27 = 11287988068673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11287988068871) 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, 2633686161 + ... + 2633690446.

It is an arithmetic number, because the mean of its divisors is an integer number (2823313861888).

Almost surely, 211287988068801 is an apocalyptic number.

It is an amenable number.

11287988068801 is a deficient number, since it is larger than the sum of its proper divisors (5267378751).

11287988068801 is an equidigital number, since it uses as much as digits as its factorization.

11287988068801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5267378750.

The product of its (nonzero) digits is 24772608, while the sum is 67.

The spelling of 11287988068801 in words is "eleven trillion, two hundred eighty-seven billion, nine hundred eighty-eight million, sixty-eight thousand, eight hundred one".

Divisors: 1 2143 5267376607 11287988068801