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16043122525 = 525312108017
BaseRepresentation
bin11101111000011111…
…01001111101011101
31112102001222001210011
432330033221331131
5230324014410100
611211535443221
71105364201653
oct167417517535
945361861704
1016043122525
116892a19451
123138986511
1316889a4111
14ac2998dd3
1563d6b2bba
hex3bc3e9f5d

16043122525 has 12 divisors (see below), whose sum is σ = 20268822132. Its totient is φ = 12592336640.

The previous prime is 16043122519. The next prime is 16043122531. The reversal of 16043122525 is 52522134061.

It is an interprime number because it is at equal distance from previous prime (16043122519) and next prime (16043122531).

It can be written as a sum of positive squares in 6 ways, for example, as 17081689 + 16026040836 = 4133^2 + 126594^2 .

It is not a de Polignac number, because 16043122525 - 23 = 16043122517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6052684 + ... + 6055333.

It is an arithmetic number, because the mean of its divisors is an integer number (1689068511).

Almost surely, 216043122525 is an apocalyptic number.

It is an amenable number.

16043122525 is a deficient number, since it is larger than the sum of its proper divisors (4225699607).

16043122525 is a wasteful number, since it uses less digits than its factorization.

16043122525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12108080 (or 12108075 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 16043122525 its reverse (52522134061), we get a palindrome (68565256586).

The spelling of 16043122525 in words is "sixteen billion, forty-three million, one hundred twenty-two thousand, five hundred twenty-five".

Divisors: 1 5 25 53 265 1325 12108017 60540085 302700425 641724901 3208624505 16043122525