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8142952365 = 3251091660133
BaseRepresentation
bin1111001010101101…
…11001011110101101
3210000111101211200100
413211112321132231
5113134043433430
63424003421313
7405534644622
oct74526713655
923014354610
108142952365
1134a95366a9
1216b3084839
139ca045212
1457367a349
15329d36960
hex1e55b97ad

8142952365 has 24 divisors (see below), whose sum is σ = 14243949720. Its totient is φ = 4303062144.

The previous prime is 8142952357. The next prime is 8142952393. The reversal of 8142952365 is 5632592418.

8142952365 is a `hidden beast` number, since 81 + 42 + 9 + 523 + 6 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 35390601 + 8107561764 = 5949^2 + 90042^2 .

It is not a de Polignac number, because 8142952365 - 23 = 8142952357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 8142952365.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 825162 + ... + 834971.

It is an arithmetic number, because the mean of its divisors is an integer number (593497905).

Almost surely, 28142952365 is an apocalyptic number.

It is an amenable number.

8142952365 is a deficient number, since it is larger than the sum of its proper divisors (6100997355).

8142952365 is a wasteful number, since it uses less digits than its factorization.

8142952365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660253 (or 1660250 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 8142952365 is about 90238.3087441249. The cubic root of 8142952365 is about 2011.8424370241.

The spelling of 8142952365 in words is "eight billion, one hundred forty-two million, nine hundred fifty-two thousand, three hundred sixty-five".

Divisors: 1 3 5 9 15 45 109 327 545 981 1635 4905 1660133 4980399 8300665 14941197 24901995 74705985 180954497 542863491 904772485 1628590473 2714317455 8142952365