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16440450287711 = 91917889499769
BaseRepresentation
bin1110111100111101011100…
…1100110000100001011111
32011012200200020200200211112
43233033113030300201133
54123330020233201321
654544345534212235
73314532453465452
oct357172714604137
964180606620745
1016440450287711
1152693a064970a
121a1632965407b
13923435276828
1440ba173c3499
151d79c1aa4a5b
hexef3d733085f

16440450287711 has 4 divisors (see below), whose sum is σ = 16458339788400. Its totient is φ = 16422560787024.

The previous prime is 16440450287699. The next prime is 16440450287713. The reversal of 16440450287711 is 11778205404461.

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

It is a cyclic number.

It is not a de Polignac number, because 16440450287711 - 230 = 16439376545887 is a prime.

It is a super-3 number, since 3×164404502877113 (a number of 41 digits) contains 333 as substring.

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 16440450287711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16440450287713) 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, 8944748966 + ... + 8944750803.

It is an arithmetic number, because the mean of its divisors is an integer number (4114584947100).

Almost surely, 216440450287711 is an apocalyptic number.

16440450287711 is a deficient number, since it is larger than the sum of its proper divisors (17889500689).

16440450287711 is an equidigital number, since it uses as much as digits as its factorization.

16440450287711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17889500688.

The product of its (nonzero) digits is 1505280, while the sum is 50.

The spelling of 16440450287711 in words is "sixteen trillion, four hundred forty billion, four hundred fifty million, two hundred eighty-seven thousand, seven hundred eleven".

Divisors: 1 919 17889499769 16440450287711