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144542666513 = 731999210809
BaseRepresentation
bin1000011010011101101…
…0100000111100010001
3111211002102112020201002
42012213122200330101
54332010410312023
6150222454551345
713304621252000
oct2064732407421
9454072466632
10144542666513
1156333626793
122401b068555
1310826a56c4b
146dd2a82c37
153b5e93bb28
hex21a76a0f11

144542666513 has 16 divisors (see below), whose sum is σ = 168648000000. Its totient is φ = 123831148896.

The previous prime is 144542666507. The next prime is 144542666537. The reversal of 144542666513 is 315666245441.

It is not a de Polignac number, because 144542666513 - 212 = 144542662417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144542666563) 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 in 15 ways as a sum of consecutive naturals, for example, 580253 + ... + 791061.

It is an arithmetic number, because the mean of its divisors is an integer number (10540500000).

Almost surely, 2144542666513 is an apocalyptic number.

It is an amenable number.

144542666513 is a deficient number, since it is larger than the sum of its proper divisors (24105333487).

144542666513 is an equidigital number, since it uses as much as digits as its factorization.

144542666513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212829 (or 212815 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 47.

The spelling of 144542666513 in words is "one hundred forty-four billion, five hundred forty-two million, six hundred sixty-six thousand, five hundred thirteen".

Divisors: 1 7 49 343 1999 13993 97951 210809 685657 1475663 10329641 72307487 421407191 2949850337 20648952359 144542666513