Search a number
-
+
48871181 is a prime number
BaseRepresentation
bin1011101001101…
…1011100001101
310101221220122202
42322123130031
5100002334211
64503251245
71132253402
oct272333415
9111856582
1048871181
112564a707
1214449b25
13a181678
1466c22a9
15445553b
hex2e9b70d

48871181 has 2 divisors, whose sum is σ = 48871182. Its totient is φ = 48871180.

The previous prime is 48871171. The next prime is 48871189. The reversal of 48871181 is 18117884.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47141956 + 1729225 = 6866^2 + 1315^2 .

It is a cyclic number.

It is not a de Polignac number, because 48871181 - 218 = 48609037 is a prime.

It is a super-2 number, since 2×488711812 = 4776784664669522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48871189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24435590 + 24435591.

It is an arithmetic number, because the mean of its divisors is an integer number (24435591).

Almost surely, 248871181 is an apocalyptic number.

It is an amenable number.

48871181 is a deficient number, since it is larger than the sum of its proper divisors (1).

48871181 is an equidigital number, since it uses as much as digits as its factorization.

48871181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14336, while the sum is 38.

The square root of 48871181 is about 6990.7925873967. The cubic root of 48871181 is about 365.6096174014.

The spelling of 48871181 in words is "forty-eight million, eight hundred seventy-one thousand, one hundred eighty-one".