Search a number
-
+
47301131 is a prime number
BaseRepresentation
bin1011010001110…
…0001000001011
310022000010221202
42310130020023
544102114011
64405454415
71113024113
oct264341013
9108003852
1047301131
1124778049
1213a1140b
139a51b47
1463d4043
15424523b
hex2d1c20b

47301131 has 2 divisors, whose sum is σ = 47301132. Its totient is φ = 47301130.

The previous prime is 47301109. The next prime is 47301151. The reversal of 47301131 is 13110374.

It is a happy number.

It is an a-pointer prime, because the next prime (47301151) can be obtained adding 47301131 to its sum of digits (20).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47301131 - 218 = 47038987 is a prime.

It is a super-2 number, since 2×473011312 = 4474793987758322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47301101) 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 as a sum of consecutive naturals, namely, 23650565 + 23650566.

It is an arithmetic number, because the mean of its divisors is an integer number (23650566).

Almost surely, 247301131 is an apocalyptic number.

47301131 is a deficient number, since it is larger than the sum of its proper divisors (1).

47301131 is an equidigital number, since it uses as much as digits as its factorization.

47301131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 47301131 is about 6877.5817697793. The cubic root of 47301131 is about 361.6516978899.

The spelling of 47301131 in words is "forty-seven million, three hundred one thousand, one hundred thirty-one".