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10785378835 = 5711292633673
BaseRepresentation
bin10100000101101101…
…11101001000010011
31000211122121000100101
422002312331020103
5134042024110320
64542120033231
7531162131110
oct120266751023
930748530311
1010785378835
114635079830
122110002817
13102b62128a
147445a3907
15431ce7c0a
hex282dbd213

10785378835 has 64 divisors (see below), whose sum is σ = 16760494080. Its totient is φ = 6465070080.

The previous prime is 10785378803. The next prime is 10785378871. The reversal of 10785378835 is 53887358701.

It is not a de Polignac number, because 10785378835 - 25 = 10785378803 is a prime.

It is a super-2 number, since 2×107853788352 (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2934559 + ... + 2938231.

It is an arithmetic number, because the mean of its divisors is an integer number (261882720).

Almost surely, 210785378835 is an apocalyptic number.

10785378835 is a deficient number, since it is larger than the sum of its proper divisors (5975115245).

10785378835 is a wasteful number, since it uses less digits than its factorization.

10785378835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3988.

The product of its (nonzero) digits is 5644800, while the sum is 55.

The spelling of 10785378835 in words is "ten billion, seven hundred eighty-five million, three hundred seventy-eight thousand, eight hundred thirty-five".

Divisors: 1 5 7 11 29 35 55 77 145 203 263 319 385 1015 1315 1595 1841 2233 2893 3673 7627 9205 11165 14465 18365 20251 25711 38135 40403 53389 83897 101255 106517 128555 202015 266945 282821 419485 532585 587279 745619 965999 1171687 1414105 2936395 3728095 4829995 5858435 6761993 8201809 10625989 28013971 33809965 41009045 53129945 74381923 140069855 196097797 308153681 371909615 980488985 1540768405 2157075767 10785378835