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65443512141 = 3372292815381
BaseRepresentation
bin111100111100101111…
…001011111101001101
320020220212111212121000
4330330233023331031
52033012014342031
650021521330513
74504515450330
oct747457137515
9206825455530
1065443512141
112583317a327
1210824a96a39
13622c4536a7
14324b804617
151a805b53e6
hexf3cbcbf4d

65443512141 has 64 divisors (see below), whose sum is σ = 111704486400. Its totient is φ = 37093593600.

The previous prime is 65443512109. The next prime is 65443512181. The reversal of 65443512141 is 14121534456.

65443512141 is a `hidden beast` number, since 6 + 5 + 4 + 435 + 1 + 214 + 1 = 666.

It is not a de Polignac number, because 65443512141 - 25 = 65443512109 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 65443512096 and 65443512105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65443512181) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12159271 + ... + 12164651.

It is an arithmetic number, because the mean of its divisors is an integer number (1745382600).

Almost surely, 265443512141 is an apocalyptic number.

It is an amenable number.

65443512141 is a deficient number, since it is larger than the sum of its proper divisors (46260974259).

65443512141 is a wasteful number, since it uses less digits than its factorization.

65443512141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5907 (or 5901 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The spelling of 65443512141 in words is "sixty-five billion, four hundred forty-three million, five hundred twelve thousand, one hundred forty-one".

Divisors: 1 3 7 9 21 27 63 189 229 281 687 843 1603 1967 2061 2529 4809 5381 5901 6183 7587 14427 16143 17703 37667 43281 48429 53109 64349 113001 145287 193047 339003 450443 579141 1017009 1232249 1351329 1512061 1737423 3696747 4053987 4536183 8625743 10584427 11090241 12161961 13608549 25877229 31753281 33270723 40825647 77631687 95259843 232895061 285779529 346261969 1038785907 2423833783 3116357721 7271501349 9349073163 21814504047 65443512141