Search a number
-
+
10531999704868 = 22171123137918387
BaseRepresentation
bin1001100101000010110000…
…0110011110011100100100
31101021211221011112101211021
42121100230012132130210
52340024013411023433
634222200041020524
72134624525255105
oct231205406363444
941254834471737
1010531999704868
1133a06612a03a4
121221209484744
135b5217a412b5
14285a741ba3ac
15133e6500522d
hex9942c19e724

10531999704868 has 24 divisors (see below), whose sum is σ = 19532553782112. Its totient is φ = 4951821730944.

The previous prime is 10531999704769. The next prime is 10531999704869. The reversal of 10531999704868 is 86840799913501.

It is a super-2 number, since 2×105319997048682 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10531999704797 and 10531999704806.

It is not an unprimeable number, because it can be changed into a prime (10531999704869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68882830 + ... + 69035557.

It is an arithmetic number, because the mean of its divisors is an integer number (813856407588).

Almost surely, 210531999704868 is an apocalyptic number.

It is an amenable number.

10531999704868 is a deficient number, since it is larger than the sum of its proper divisors (9000554077244).

10531999704868 is a wasteful number, since it uses less digits than its factorization.

10531999704868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137919531 (or 137919529 counting only the distinct ones).

The product of its (nonzero) digits is 117573120, while the sum is 70.

The spelling of 10531999704868 in words is "ten trillion, five hundred thirty-one billion, nine hundred ninety-nine million, seven hundred four thousand, eight hundred sixty-eight".

Divisors: 1 2 4 17 34 68 1123 2246 4492 19091 38182 76364 137918387 275836774 551673548 2344612579 4689225158 9378450316 154882348601 309764697202 619529394404 2632999926217 5265999852434 10531999704868