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47409075541 = 68696901889
BaseRepresentation
bin101100001001110011…
…010001010101010101
311112101000112120102201
4230021303101111111
51234043210404131
633440205004501
73265561331062
oct541163212525
9145330476381
1047409075541
1119119207173
129231253731
134617056929
14241a5b1c69
1513771a8761
hexb09cd1555

47409075541 has 4 divisors (see below), whose sum is σ = 47415984300. Its totient is φ = 47402166784.

The previous prime is 47409075509. The next prime is 47409075547. The reversal of 47409075541 is 14557090474.

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 5486513041 + 41922562500 = 74071^2 + 204750^2 .

It is a cyclic number.

It is not a de Polignac number, because 47409075541 - 25 = 47409075509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47409075491 and 47409075500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47409075547) 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, 3444076 + ... + 3457813.

It is an arithmetic number, because the mean of its divisors is an integer number (11853996075).

Almost surely, 247409075541 is an apocalyptic number.

It is an amenable number.

47409075541 is a deficient number, since it is larger than the sum of its proper divisors (6908759).

47409075541 is an equidigital number, since it uses as much as digits as its factorization.

47409075541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6908758.

The product of its (nonzero) digits is 705600, while the sum is 46.

The spelling of 47409075541 in words is "forty-seven billion, four hundred nine million, seventy-five thousand, five hundred forty-one".

Divisors: 1 6869 6901889 47409075541