Search a number
-
+
65130260387 = 473134879091
BaseRepresentation
bin111100101010000100…
…001110011110100011
320020010001002000222012
4330222010032132203
52031341321313022
645530451303135
74463663036033
oct745204163643
9206101060865
1065130260387
1125692374685
1210757baaaab
1361ac595c1a
14321bd818c3
151a62d39de2
hexf2a10e7a3

65130260387 has 16 divisors (see below), whose sum is σ = 66872896512. Its totient is φ = 63403404480.

The previous prime is 65130260369. The next prime is 65130260399. The reversal of 65130260387 is 78306203156.

65130260387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 65130260387 - 218 = 65129998243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65130260887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7159712 + ... + 7168802.

It is an arithmetic number, because the mean of its divisors is an integer number (4179556032).

Almost surely, 265130260387 is an apocalyptic number.

65130260387 is a deficient number, since it is larger than the sum of its proper divisors (1742636125).

65130260387 is a wasteful number, since it uses less digits than its factorization.

65130260387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9938.

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 65130260387 in words is "sixty-five billion, one hundred thirty million, two hundred sixty thousand, three hundred eighty-seven".

Divisors: 1 47 313 487 9091 14711 22889 152431 427277 2845483 4427317 7164257 133737701 208083899 1385750221 65130260387