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3144040261 is a prime number
BaseRepresentation
bin1011101101100110…
…0011111101000101
322010010001210102121
42323121203331011
522414333242021
61235551405541
7140624621065
oct27331437505
98103053377
103144040261
111373801a8a
12738b238b1
133b14a786b
1421b7bd3a5
15136047741
hexbb663f45

3144040261 has 2 divisors, whose sum is σ = 3144040262. Its totient is φ = 3144040260.

The previous prime is 3144040201. The next prime is 3144040271. The reversal of 3144040261 is 1620404413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1639764036 + 1504276225 = 40494^2 + 38785^2 .

It is a cyclic number.

It is not a de Polignac number, because 3144040261 - 217 = 3143909189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3144040201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1572020130 + 1572020131.

It is an arithmetic number, because the mean of its divisors is an integer number (1572020131).

Almost surely, 23144040261 is an apocalyptic number.

It is an amenable number.

3144040261 is a deficient number, since it is larger than the sum of its proper divisors (1).

3144040261 is an equidigital number, since it uses as much as digits as its factorization.

3144040261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 3144040261 is about 56071.7420899333. The cubic root of 3144040261 is about 1464.9721421860.

Adding to 3144040261 its reverse (1620404413), we get a palindrome (4764444674).

The spelling of 3144040261 in words is "three billion, one hundred forty-four million, forty thousand, two hundred sixty-one".