Search a number
-
+
100300181 is a prime number
BaseRepresentation
bin1011111101001…
…11010110010101
320222201202222112
411332213112111
5201134101211
613541440405
72325352232
oct576472625
9228652875
10100300181
1151687013
1229710105
1317a1a327
14d46c789
158c1388b
hex5fa7595

100300181 has 2 divisors, whose sum is σ = 100300182. Its totient is φ = 100300180.

The previous prime is 100300163. The next prime is 100300199. The reversal of 100300181 is 181003001.

It is a balanced prime because it is at equal distance from previous prime (100300163) and next prime (100300199).

It can be written as a sum of positive squares in only one way, i.e., 95746225 + 4553956 = 9785^2 + 2134^2 .

It is a cyclic number.

It is not a de Polignac number, because 100300181 - 214 = 100283797 is a prime.

It is a super-2 number, since 2×1003001812 = 20120252617265522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100300121) 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, 50150090 + 50150091.

It is an arithmetic number, because the mean of its divisors is an integer number (50150091).

Almost surely, 2100300181 is an apocalyptic number.

It is an amenable number.

100300181 is a deficient number, since it is larger than the sum of its proper divisors (1).

100300181 is an equidigital number, since it uses as much as digits as its factorization.

100300181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 100300181 is about 10014.9978032948. The cubic root of 100300181 is about 464.6228583415.

Adding to 100300181 its reverse (181003001), we get a palindrome (281303182).

The spelling of 100300181 in words is "one hundred million, three hundred thousand, one hundred eighty-one".