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16051408989 = 371169486619
BaseRepresentation
bin11101111001011110…
…10001000001011101
31112102122120001200020
432330233101001131
5230333130041424
611212433222353
71105524503520
oct167457210135
945378501606
1016051408989
116897669170
12313b7019b9
13168a615a55
14ac3b14bb7
1563e29d079
hex3bcbd105d

16051408989 has 16 divisors (see below), whose sum is σ = 26682862080. Its totient is φ = 8338394160.

The previous prime is 16051408987. The next prime is 16051408991. The reversal of 16051408989 is 98980415061.

It is an interprime number because it is at equal distance from previous prime (16051408987) and next prime (16051408991).

It is not a de Polignac number, because 16051408989 - 21 = 16051408987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16051408987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34743079 + ... + 34743540.

It is an arithmetic number, because the mean of its divisors is an integer number (1667678880).

Almost surely, 216051408989 is an apocalyptic number.

It is an amenable number.

16051408989 is a deficient number, since it is larger than the sum of its proper divisors (10631453091).

16051408989 is a wasteful number, since it uses less digits than its factorization.

16051408989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69486640.

The product of its (nonzero) digits is 622080, while the sum is 51.

The spelling of 16051408989 in words is "sixteen billion, fifty-one million, four hundred eight thousand, nine hundred eighty-nine".

Divisors: 1 3 7 11 21 33 77 231 69486619 208459857 486406333 764352809 1459218999 2293058427 5350469663 16051408989