Search a number
-
+
47709241 = 239319937
BaseRepresentation
bin1011010111111…
…1110000111001
310022202212202221
42311333300321
544203143431
64422324041
71116343666
oct265776071
9108685687
1047709241
1124a26728
1213b89621
139b65828
14649ca6d
1542c6111
hex2d7fc39

47709241 has 4 divisors (see below), whose sum is σ = 47731572. Its totient is φ = 47686912.

The previous prime is 47709227. The next prime is 47709253. The reversal of 47709241 is 14290774.

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 3884841 + 43824400 = 1971^2 + 6620^2 .

It is a cyclic number.

It is not a de Polignac number, because 47709241 - 211 = 47707193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47709197 and 47709206.

It is not an unprimeable number, because it can be changed into a prime (47709041) 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, 7576 + ... + 12361.

It is an arithmetic number, because the mean of its divisors is an integer number (11932893).

Almost surely, 247709241 is an apocalyptic number.

It is an amenable number.

47709241 is a deficient number, since it is larger than the sum of its proper divisors (22331).

47709241 is a wasteful number, since it uses less digits than its factorization.

47709241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22330.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 47709241 is about 6907.1876331833. The cubic root of 47709241 is about 362.6888205353.

The spelling of 47709241 in words is "forty-seven million, seven hundred nine thousand, two hundred forty-one".

Divisors: 1 2393 19937 47709241