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2961103409 = 11233772617
BaseRepresentation
bin1011000001111110…
…1101101000110001
321122100211122020122
42300133231220301
522031020302114
61205454420025
7133243651355
oct26037555061
97570748218
102961103409
11128a513900
126a7801615
13382615cc4
1420139d465
15124e5de8e
hexb07eda31

2961103409 has 12 divisors (see below), whose sum is σ = 3264469572. Its totient is φ = 2683887360.

The previous prime is 2961103381. The next prime is 2961103423. The reversal of 2961103409 is 9043011692.

It can be written as a sum of positive squares in 2 ways, for example, as 2093977600 + 867125809 = 45760^2 + 29447^2 .

It is a de Polignac number, because none of the positive numbers 2k-2961103409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2961103459) 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 11 ways as a sum of consecutive naturals, for example, 4469 + ... + 77085.

It is an arithmetic number, because the mean of its divisors is an integer number (272039131).

Almost surely, 22961103409 is an apocalyptic number.

It is an amenable number.

2961103409 is a deficient number, since it is larger than the sum of its proper divisors (303366163).

2961103409 is a wasteful number, since it uses less digits than its factorization.

2961103409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72976 (or 72965 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 2961103409 is about 54416.0216204750. The cubic root of 2961103409 is about 1435.9892589066.

The spelling of 2961103409 in words is "two billion, nine hundred sixty-one million, one hundred three thousand, four hundred nine".

Divisors: 1 11 121 337 3707 40777 72617 798787 8786657 24471929 269191219 2961103409