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144542692997 = 294984230793
BaseRepresentation
bin1000011010011101101…
…0100111011010000101
3111211002102120121000222
42012213122213122011
54332010412133442
6150222455314125
713304621422133
oct2064732473205
9454072517028
10144542692997
115633364467a
122401b07b945
1310826a66011
146dd2a8c753
153b5e9448d2
hex21a76a7685

144542692997 has 4 divisors (see below), whose sum is σ = 149526923820. Its totient is φ = 139558462176.

The previous prime is 144542692993. The next prime is 144542693003. The reversal of 144542692997 is 799296245441.

144542692997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 799296245441 = 6653811201261.

It can be written as a sum of positive squares in 2 ways, for example, as 55863213316 + 88679479681 = 236354^2 + 297791^2 .

It is a cyclic number.

It is not a de Polignac number, because 144542692997 - 22 = 144542692993 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144542692993) 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 in 3 ways as a sum of consecutive naturals, for example, 2492115368 + ... + 2492115425.

It is an arithmetic number, because the mean of its divisors is an integer number (37381730955).

Almost surely, 2144542692997 is an apocalyptic number.

It is an amenable number.

144542692997 is a deficient number, since it is larger than the sum of its proper divisors (4984230823).

144542692997 is an equidigital number, since it uses as much as digits as its factorization.

144542692997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4984230822.

The product of its digits is 39191040, while the sum is 62.

The spelling of 144542692997 in words is "one hundred forty-four billion, five hundred forty-two million, six hundred ninety-two thousand, nine hundred ninety-seven".

Divisors: 1 29 4984230793 144542692997