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143666666341 = 11217971017129
BaseRepresentation
bin1000010111001100110…
…0110101101101100101
3111201211101011211101021
42011303030311231211
54323212131310331
6145555523131141
713244123341432
oct2056314655545
9451741154337
10143666666341
1155a240a6900
1223a15813ab1
1310717414453
146d4c5b2b89
153b0caa1211
hex2173335b65

143666666341 has 48 divisors (see below), whose sum is σ = 170623923120. Its totient is φ = 120434688000.

The previous prime is 143666666327. The next prime is 143666666393.

143666666341 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 8 ways, for example, as 30921815716 + 112744850625 = 175846^2 + 335775^2 .

It is a de Polignac number, because none of the positive numbers 2k-143666666341 is a prime.

It is a super-2 number, since 2×1436666663412 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143666666441) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20148865 + ... + 20155993.

It is an arithmetic number, because the mean of its divisors is an integer number (3554665065).

Almost surely, 2143666666341 is an apocalyptic number.

143666666341 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

143666666341 is a deficient number, since it is larger than the sum of its proper divisors (26957256779).

143666666341 is a wasteful number, since it uses less digits than its factorization.

143666666341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7366 (or 7355 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 52.

The spelling of 143666666341 in words is "one hundred forty-three billion, six hundred sixty-six million, six hundred sixty-six thousand, three hundred forty-one".

Divisors: 1 11 17 97 101 121 187 1067 1111 1649 1717 2057 7129 9797 11737 12221 18139 18887 78419 107767 121193 166549 199529 207757 691513 720029 862609 1185437 1333123 1832039 7606643 7920319 11755721 12240493 14664353 20152429 69842813 83673073 87123509 129312931 134645423 768270943 1187327821 1422442241 1481099653 8450980373 13060606031 143666666341