Search a number
-
+
47965471 is a prime number
BaseRepresentation
bin1011011011111…
…0010100011111
310100020220020221
42312332110133
544234343341
64432022211
71121462011
oct266762437
9110226227
1047965471
1125091194
1214091967
139c25348
1465281b1
154326ed1
hex2dbe51f

47965471 has 2 divisors, whose sum is σ = 47965472. Its totient is φ = 47965470.

The previous prime is 47965469. The next prime is 47965493. The reversal of 47965471 is 17456974.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47965471 - 21 = 47965469 is a prime.

It is a super-3 number, since 3×479654713 (a number of 24 digits) contains 333 as substring.

Together with 47965469, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47965441) 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 as a sum of consecutive naturals, namely, 23982735 + 23982736.

It is an arithmetic number, because the mean of its divisors is an integer number (23982736).

Almost surely, 247965471 is an apocalyptic number.

47965471 is a deficient number, since it is larger than the sum of its proper divisors (1).

47965471 is an equidigital number, since it uses as much as digits as its factorization.

47965471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 43.

The square root of 47965471 is about 6925.7108660411. The cubic root of 47965471 is about 363.3369541111.

The spelling of 47965471 in words is "forty-seven million, nine hundred sixty-five thousand, four hundred seventy-one".