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10182686805 = 3251092075981
BaseRepresentation
bin10010111101110111…
…10111100001010101
3222021122112002022100
421132323313201111
5131323231434210
64402230152313
7510223260354
oct113673674125
928248462270
1010182686805
114355952345
121b821b2699
13c637c2285
146c851999b
153e8e475c0
hex25eef7855

10182686805 has 24 divisors (see below), whose sum is σ = 17811925560. Its totient is φ = 5380940160.

The previous prime is 10182686803. The next prime is 10182686819. The reversal of 10182686805 is 50868628101.

It can be written as a sum of positive squares in 4 ways, for example, as 1632725649 + 8549961156 = 40407^2 + 92466^2 .

It is not a de Polignac number, because 10182686805 - 21 = 10182686803 is a prime.

It is a super-2 number, since 2×101826868052 (a number of 21 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10182686803) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1033086 + ... + 1042895.

It is an arithmetic number, because the mean of its divisors is an integer number (742163565).

Almost surely, 210182686805 is an apocalyptic number.

10182686805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10182686805 is a deficient number, since it is larger than the sum of its proper divisors (7629238755).

10182686805 is a wasteful number, since it uses less digits than its factorization.

10182686805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2076101 (or 2076098 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The spelling of 10182686805 in words is "ten billion, one hundred eighty-two million, six hundred eighty-six thousand, eight hundred five".

Divisors: 1 3 5 9 15 45 109 327 545 981 1635 4905 2075981 6227943 10379905 18683829 31139715 93419145 226281929 678845787 1131409645 2036537361 3394228935 10182686805