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53747054261 = 79680342459
BaseRepresentation
bin110010000011100100…
…101111011010110101
312010201201120020202022
4302003210233122311
51340033221214021
640405133522525
73611621265125
oct620344573265
9163651506668
1053747054261
11208808a140a
12a4bb943445
1350b7159cb4
14285c23cc85
1515e88031ab
hexc8392f6b5

53747054261 has 4 divisors (see below), whose sum is σ = 54427396800. Its totient is φ = 53066711724.

The previous prime is 53747054183. The next prime is 53747054287. The reversal of 53747054261 is 16245074735.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53747054261 - 218 = 53746792117 is a prime.

It is a super-2 number, since 2×537470542612 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53747044261) 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 3 ways as a sum of consecutive naturals, for example, 340171151 + ... + 340171308.

It is an arithmetic number, because the mean of its divisors is an integer number (13606849200).

Almost surely, 253747054261 is an apocalyptic number.

It is an amenable number.

53747054261 is a deficient number, since it is larger than the sum of its proper divisors (680342539).

53747054261 is an equidigital number, since it uses as much as digits as its factorization.

53747054261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680342538.

The product of its (nonzero) digits is 705600, while the sum is 44.

The spelling of 53747054261 in words is "fifty-three billion, seven hundred forty-seven million, fifty-four thousand, two hundred sixty-one".

Divisors: 1 79 680342459 53747054261