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47018241 = 3226919421
BaseRepresentation
bin1011001101011…
…1000100000001
310021110202220100
42303113010001
544014040431
64355433013
71110435264
oct263270401
9107422810
1047018241
11245a4556
12138b5769
13998315a
14635ccdb
1541db4e6
hex2cd7101

47018241 has 12 divisors (see below), whose sum is σ = 68171220. Its totient is φ = 31227360.

The previous prime is 47018239. The next prime is 47018269. The reversal of 47018241 is 14281074.

It can be written as a sum of positive squares in 2 ways, for example, as 26224641 + 20793600 = 5121^2 + 4560^2 .

It is not a de Polignac number, because 47018241 - 21 = 47018239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47018201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7290 + ... + 12131.

It is an arithmetic number, because the mean of its divisors is an integer number (5680935).

Almost surely, 247018241 is an apocalyptic number.

It is an amenable number.

47018241 is a deficient number, since it is larger than the sum of its proper divisors (21152979).

47018241 is a wasteful number, since it uses less digits than its factorization.

47018241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19696 (or 19693 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 47018241 is about 6856.9848330006. The cubic root of 47018241 is about 360.9292889232.

The spelling of 47018241 in words is "forty-seven million, eighteen thousand, two hundred forty-one".

Divisors: 1 3 9 269 807 2421 19421 58263 174789 5224249 15672747 47018241