Search a number
-
+
144442801 is a prime number
BaseRepresentation
bin10001001110000…
…00010110110001
3101001210110021101
420213000112301
5243434132201
622155524401
73402513016
oct1047002661
9331713241
10144442801
1174597018
1240459701
1323c04619
141527d70d
15ca32d01
hex89c05b1

144442801 has 2 divisors, whose sum is σ = 144442802. Its totient is φ = 144442800.

The previous prime is 144442789. The next prime is 144442811. The reversal of 144442801 is 108244441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134583201 + 9859600 = 11601^2 + 3140^2 .

It is a cyclic number.

It is not a de Polignac number, because 144442801 - 211 = 144440753 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144442801.

It is not a weakly prime, because it can be changed into another prime (144442811) 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, 72221400 + 72221401.

It is an arithmetic number, because the mean of its divisors is an integer number (72221401).

Almost surely, 2144442801 is an apocalyptic number.

It is an amenable number.

144442801 is a deficient number, since it is larger than the sum of its proper divisors (1).

144442801 is an equidigital number, since it uses as much as digits as its factorization.

144442801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4096, while the sum is 28.

The square root of 144442801 is about 12018.4358799305. The cubic root of 144442801 is about 524.6849822940.

The spelling of 144442801 in words is "one hundred forty-four million, four hundred forty-two thousand, eight hundred one".