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53748242797 = 173161661341
BaseRepresentation
bin110010000011101001…
…010001100101101101
312010201210210122010011
4302003221101211231
51340034022232142
640405215213221
73611634345214
oct620351214555
9163653718104
1053748242797
1120881533377
12a500217211
1350b7484c82
14285c46c07b
1515e898a417
hexc83a5196d

53748242797 has 4 divisors (see below), whose sum is σ = 56909904156. Its totient is φ = 50586581440.

The previous prime is 53748242771. The next prime is 53748242819. The reversal of 53748242797 is 79724284735.

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

It can be written as a sum of positive squares in 2 ways, for example, as 48464261316 + 5283981481 = 220146^2 + 72691^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-53748242797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53748242707) 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 3 ways as a sum of consecutive naturals, for example, 1580830654 + ... + 1580830687.

It is an arithmetic number, because the mean of its divisors is an integer number (14227476039).

Almost surely, 253748242797 is an apocalyptic number.

It is an amenable number.

53748242797 is a deficient number, since it is larger than the sum of its proper divisors (3161661359).

53748242797 is a wasteful number, since it uses less digits than its factorization.

53748242797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3161661358.

The product of its digits is 23708160, while the sum is 58.

The spelling of 53748242797 in words is "fifty-three billion, seven hundred forty-eight million, two hundred forty-two thousand, seven hundred ninety-seven".

Divisors: 1 17 3161661341 53748242797